Jonathan Mark Zenilman, M.D.

• Chief, Division of Infection Diseases, Johns Hopkins Bayview Medical Center
• Professor of Medicine

https://www.hopkinsmedicine.org/profiles/results/directory/profile/0005115/jonathan-zenilman

When the lesion is moderately to highly suspicious for lung cancer anxiety xr buy generic prozac 40mg line, an upfront surgical excision performed via thoracoscopy is the most definitive method for establishing a diagnosis mood disorder characteristics purchase prozac 60 mg mastercard. The use of rapid on-site evaluation can further reduce the number of aspirations without reducing the accuracy of the method depression quotes effective prozac 10mg. Anterolateral paratracheal locations (stations 2R depression in the bible prozac 10mg cheap, 2L mood disorder undiagnosed prozac 20mg order without a prescription, and 4R) are commonly involved in patients with lung cancer but are not sampled reliably with this technique. Lymphatic pathways favor spread to aortopulmonary window nodes from left upper lobe tumors and to subcarinal nodes from left and right lower lobe lesions. Its range includes the highest mediastinal lymph nodes (station 1), upper paratracheal lymph nodes (stations 2R and 2L), lower paratracheal lymph nodes (stations 4R and 4L), subcarinal lymph nodes (station 7), hilar lymph nodes (station 10), and interlobar lymph nodes (station 11). The left lobe of the liver, a substantial part of the right lobe of the liver, and the left (but not the right) adrenal gland can be identified and sampled in 97% of patients. A pooled analysis of data from seven studies (811 patients) showed a sensitivity and specificity of 91% and 100%, respectively. These techniques are complementary to a thorough history, physical examination, and imaging modalities. Methods for staging non-small cell lung cancers; diagnosis and management of lung cancer, 3rd ed: American College of Chest Physicians evidence-based clinical practice guidelines. Test performance of positron emission tomography and computed tomography for mediastinal staging in patients with non-small-cell lung cancer: a metaanalysis. Cost-benefit of minimally invasive staging of non-small cell lung cancer: a decision tree sensitivity analysis. Rapid on-site evaluation of transbronchial aspirates in the diagnosis of hilar and mediastinal adenopathy: a randomized trial. Endoscopic ultrasoundguided fine-needle aspiration in the diagnosis and staging of lung cancer and its impact on surgical staging. Endoscopic ultrasound added to mediastinoscopy for preoperative staging of patients with lung cancer. Trends in stage distribution for patients with non-small cell lung cancer: a National Cancer Database survey. Identifying patients with suspected lung cancer in primary care: derivation and validation of an algorithm. Clinical and organizational factors in the initial evaluation of patients with lung cancer: diagnosis and management of lung cancer, 3rd ed: American College of Chest Physicians evidence-based clinical practice guidelines. Methods for staging nonsmall cell lung cancers; diagnosis and management of lung cancer, 3rd ed: American College of Chest Physicians evidence-based clinical practice guidelines. A practical algorithmic approach to the diagnosis and management of solitary pulmonary nodules: part 1: radiologic characteristics and imaging modalities. Establishing the diagnosis of lung cancer: diagnosis and management of lung cancer, 3rd ed: American College of Chest Physicians evidence-based clinical practice guidelines. Accuracy of computed tomography and magnetic resonance imaging in staging bronchogenic carcinoma. Comparison of transbronchial needle aspiration biopsy, aspiration of bronchial secretion, bronchial washing, brush biopsy and forceps biopsy in the diagnosis of lung cancer. A prospective comparison of fiberoptic transbronchial needle aspiration and bronchial biopsy for bronchoscopically visible lung carcinoma. Integration of transbronchial and percutaneous approach in the diagnosis of peripheral pulmonary nodules or masses. Test performance of endobronchial ultrasound and transbronchial needle aspiration biopsy for mediastinal staging in patients with lung cancer: systematic review and meta-analysis. Accuracy of transbronchial needle aspiration for mediastinal staging of non-small cell lung cancer: a meta-analysis. How I do it-optimal methodology for multidirectional analysis of endobronchial ultrasound-guided transbronchial needle aspiration samples. Multigene mutation analysis of metastatic lymph nodes in non-small cell lung cancer diagnosed by endobronchial ultrasound-guided transbronchial needle aspiration. Endobronchial ultrasound-guided transbronchial needle aspiration for staging of lung cancer: a systematic review and meta-analysis. Transbronchial and transoesophageal (ultrasound-guided) needle aspirations for the analysis of mediastinal lesions. Complications, consequences, and practice patterns of endobronchial ultrasound-guided transbronchial needle aspiration. Real-time endobronchial ultrasound-guided transbronchial needle aspiration in mediastinal staging of non-small cell lung cancer: how many aspirations per target lymph node station Endoscopic ultrasound-guided fine-needle aspiration in patients with non-small cell lung cancer and prior negative mediastinoscopy. Endoscopic ultrasound guided biopsy performed routinely in lung cancer staging spares futile thoracotomies: preliminary results from a randomised clinical trial. Endoscopic ultrasound in non-small cell lung cancer and negative mediastinum on computed tomography. Endoscopic ultrasound in lung cancer patients with a normal mediastinum on computed tomography. Endoscopic ultrasound guided biopsy of mediastinal lesions has a major impact on patient management. Lobe-specific extent of systematic lymph node dissection for non-small cell lung carcinomas according to a retrospective study of metastasis and prognosis. Mediastinoscopy vs endosonography for mediastinal nodal staging of lung cancer: a randomized trial. Combined endobronchial and endoscopic ultrasound-guided fine needle aspiration for mediastinal nodal staging of lung cancer. Mediastinal staging of nonsmall cell lung carcinoma by endoscopic and endobronchial ultrasound-guided fine needle aspiration. Combined endobronchial and endoscopic ultrasound-guided fine needle aspiration for mediastinal lymph node staging of lung cancer: a meta-analysis. The utility of fiberoptic bronchoscopy in the evaluation of solitary pulmonary nodules. Population-based risk for complications after transthoracic needle lung biopsy of a pulmonary nodule: an analysis of discharge records. Using endobronchial ultrasound features to predict lymph node metastasis in patients with lung cancer. Comparison of 21-gauge and 22-gauge needle in endobronchial ultrasound-guided transbronchial needle aspiration. Results of the American College of Chest Physicians Quality Improvement Registry, Education, and Evaluation Registry. Endoscopic ultrasound with fine-needle aspiration in the diagnosis and staging of lung cancer. Endoscopic ultrasoundguided fine-needle aspiration for non-small cell lung cancers staging: a systematic review and metaanalysis. Endoscopic ultrasoundguided fine needle aspiration for staging patients with carcinoma of the lung. Role of transesophageal endosonography-guided fine-needle aspiration in the diagnosis of lung cancer. Combined endoscopic-endobronchial ultrasound-guided fine-needle aspiration of mediastinal lymph nodes through a single bronchoscope in 150 patients with suspected lung cancer. A combined approach of endobronchial and endoscopic ultrasound-guided needle aspiration in the radiologically normal mediastinum in non-small-cell lung cancer staging-a prospective trial. Endoscopic ultrasound with fine needle aspiration and biopsy in lung cancer and isolated mediastinal lymphadenopathy. Endoscopic ultrasoundguided fine-needle aspiration when combined with positron emission tomography improves specificity and overall diagnostic accuracy in unexplained mediastinal lymphadenopathy and staging of non-smallcell lung cancer. The yield of endoscopic ultrasound in lung cancer staging: does lymph node size matter Impact of preoperative endoscopic ultrasound on non-small cell lung cancer staging. Transesophageal ultrasound-guided fine needle aspiration improves mediastinal staging in patients with non-small cell lung cancer and normal mediastinum on computed tomography. Endoscopic ultrasoundguided fine needle aspiration of mediastinal lymph node in patients with suspected lung cancer after positron emission tomography and computed tomography scans. Endoscopic ultrasound-guided fine-needle aspiration in the diagnosis and staging of lung cancer and its impact on surgical staging. This map provides standard definitions of each nodal station and allows precise, uniform nomenclature when staging mediastinal and pulmonary lymph nodes. Staging of the mediastinum is a key component in the evaluation of patients with lung cancer and includes both preoperative and intraoperative components. The purpose of mediastinal staging is to distinguish those patients who may benefit from surgery from those who should have other forms of treatment. Invasive mediastinal staging provides histologic or cytologic confirmation of the status of the mediastinal lymph nodes. It is important to differentiate mediastinal node assessment for the purpose of staging versus a possible therapeutic benefit. Patients who have proven metastases in mediastinal lymph nodes have a poor prognosis because of increased risk of systemic disease. Identification of N2 disease prior to resection is preferable to avoid a noncurative resection as surgery alone is inadequate, whereas patients without mediastinal node involvement are candidates for surgery. International Association for the Study of Lung Cancer map of regional lymph nodes for the determination of N descriptor during tumor, node, and metastasis staging of lung cancer. Invasive staging by needle techniques is recommended if available, but surgical biopsies are recommended if the needle techniques are negative because of the low negative predictive value of needle biopsy techniques. Lower border: clavicles bilaterally and, in the midline, the upper border of the manubrium. For lymph node station 1, the midline of the trachea serves as the border between 1R and 1L. Lower border: intersection of the caudal margin of innominate vein with the trachea. As for lymph node station 4R, 2R includes nodes extending to the left lateral border of the trachea. Upper border: intersection of the caudal margin of innominate vein with the trachea. Lower border: the upper border of the lower-lobe bronchus on the left; the lower border of the bronchus intermedius on the right. Nodes lying adjacent to the wall of the esophagus and to the right or the left of the midline, excluding subcarinal nodes. Upper border: the upper border of the lower-lobe bronchus on the left; the lower border of the bronchus intermedius on the right. Includes nodes immediately adjacent to the mainstem bronchus and hilar vessels including the proximal portions of the pulmonary veins and the main pulmonary artery. Upper border: the lower rim of the azygos vein in the right; upper rim of the pulmonary artery on the left. Certainly any suspicious or enlarged nodes should be removed as part of a lung cancer operation or when performing a staging procedure, but removal of only an enlarged or suspicious node is not sufficient. It is not simply the removal of individual lymph nodes from those regions but rather removal of all the lymph node bearing tissue within predetermined anatomic boundaries. Extended mediastinal dissection is the formal removal of bilateral mediastinal and cervical lymph nodes. Lobe-specific systematic lymph node dissection refers to the formal dissection of lymph node bearing tissues based on the anatomic location of the cancer. For example, for a left lower lobe tumor, the lymph node dissection would include the subcarinal and inferior mediastinal node dissection. If mediastinal nodes are suspicious for metastases, it is preferable to schedule the staging procedure in advance of the planned resection. Systematic sampling: sampling of predetermined lymph nodes and lymph node stations; for example, sampling of stations 2R, 4R, 7, and 10R for right-sided tumors. Mediastinal lymph node dissection: complete removal of all mediastinal lymph node bearing tissue based on anatomic landmarks. Extended lymph node dissection: removal of bilateral paratracheal and cervical lymph nodes by formal dissection. Lobe-specific systematic node dissection: removal of mediastinal lymph node bearing tissue based on the location of the tumor. The pretracheal fascia is incised with scissors and the pretracheal plane is developed. Finger palpation of the superior mediastinum allows the surgeon to identify anatomic landmarks, such as the innominate artery and the aortic arch, and to assess the texture of the mediastinal tissues, the consistency of the paratracheal lymph nodes, and the relation of central tumors to the mediastinal structures. Finger palpation creates a mediastinal space into which the mediastinoscope is inserted. With the mediastinoscope in place, peritracheal dissection is completed by gently sweeping the adjacent tissues away from the airway with the dissection­suction­coagulation device. Before taking any biopsies, the following structures should be identified: the innominate artery lying anterior to the trachea, the aortic arch lying over the trachea on the left, the azygos vein at the right tracheobronchial angle, and the pulmonary artery anterior to the carina. Mediastinoscopy allows biopsies of the pretracheal nodes (station 1), the right and left, superior and inferior, paratracheal nodes (stations 2R/2L and 4R/4L, respectively), the subcarinal nodes Aorta Innominate A. Finger palpation of the superior mediastinum through the collar incision for mediastinoscopy. Most of the operation is performed in the open fashion; the mediastinoscope is used to complete the subcarinal and paraesophageal nodal dissection, and the thoracoscope to facilitate the removal of subaortic and para-aortic lymph nodes. For a clinically acceptable mediastinoscopy in standard clinical practice, the upper and lower paratracheal spaces and the subcarinal space should be explored and any lymph nodes identified should be subjected to biopsy. Nodal exploration should start on the contralateral side of the tumor to rule out N3 disease and then proceed in a systematic way to explore and perform biopsy on all accessible nodal stations. Mediastinoscopy also allows assessment of mediastinal invasion by either the primary tumor (T4) or by mediastinal nodes, which would preclude surgical resection. All biopsy sites should be controlled for bleeding before the incision is closed in two layers.

This 44-year-old woman was recalled from screening to evaluate a small mass protruding into the superficial fat (arrow) depression short definition generic prozac 60mg mastercard. A 40-year-old woman is recalled from screening after her first mammogram for evaluation of a mass in her right breast (arrows) mood disorder borderline personality prozac 40mg buy low price. A 64-year-old woman recalled from screening for a focal asymmetry in the left breast (arrows) depression symptoms night sweats 10mg prozac sale. This mass with suspicious features is a better correlate in size depression symptoms apa prozac 60mg buy on-line, position mood disorder center winston-salem 60 mg prozac with mastercard, and level of suspicion for the mammographic finding. Although the area looked like there may have been a change, the tissue looks very respectful on the spot compression views. Cyst A is within the hyperechoic breast tissue and represents a cyst that is deeper and larger than the mass on the mammogram. Cyst B is at the superficial border of the echogenic fibroglandular tissue and corresponds better in size and location to the mammographic finding. However, we cannot be satisfied that the finding represents summation artifact based on this single view alone. Although most nodes are found in the mid-upper and outer breast and along the pectoral muscle, they can occasionally be seen in other locations. Before starting an ultrasound examination, the patient told us about the lump, she stated that it was enlarging and tender. Normal anatomic structures and normal physiologic changes can mimic pathology; recognition of these findings as normal can avoid unnecessary follow-up studies or interventions and reduce patient anxiety. Understanding normal breast anatomy and its lymphatic drainage can also help us evaluate the extent of cancers more accurately. Breast Anatomy the Fibroglandular Tissue the breast is a mound of fibrous stroma with adipose, ductal, and glandular tissue overlying the anterior chest wall. The fibroglandular tissue is surrounded by mostly fatty tissue in the subcutaneous and retromammary (retroglandular) regions. The upper outer quadrant typically contains more fibroglandular tissue than the other quadrants and is where cancers are most likely to develop. The superficial fascia splits into deep and superficial fascial layers that envelop the fibroglandular tissue. The superficial fascial layer lies between the fibroglandular tissue and the subcutaneous fat, while the deep fascial layer is located between the fibroglandular tissue and the retromammary fat. The deep pectoral fascia separates the pectoralis major muscle from the retromammary fat. They extend like a mesh through the breast parenchyma, attaching to the dermis and the superficial and deep fascial layers. The Cooper ligaments appear mammographically as fine, white, curvilinear lines throughout the breasts. Straightening and tethering of the Cooper ligaments appear as architectural distortion and spiculation, and are often due to invasive carcinoma, radial scar/complex sclerosing lesion, or scarring due to surgery. Retraction of these ligaments by cancers can cause deformity of the border of the fibroglandular tissue, skin dimpling, or nipple retraction. Familiarity with the normal patterns created by Cooper ligaments allows recognition of cases in which these patterns are distorted. Cancers can produce retraction, protrusion, or spiculation at this border, disrupting the normal tissue contours. Breast Asymmetry Asymmetry in breast density or size is usually just a normal variation but may be due to malignancy. There may be considerably more breast tissue in one breast than the other (global asymmetry). This is a nearly always a normal finding provided there are no breast symptoms such as a palpable lump, breast thickening, or skin erythema, and no associated findings such as architectural distortion. Likewise, asymmetry in the size of the breasts can be quite striking, but is nearly always normal as long as there are no associated clinical or mammographic findings. Beware, however, of the finding known as the "shrinking breast," which is a sign of invasive lobular carcinoma. This diagnosis should be considered when one breast appears smaller than the other, especially when the parenchyma is dense and the size discrepancy is new or increasing (see Chapter 11, Expanding the Differential Diagnosis). Lobules and the Terminal Duct Lobular Unit the lobules are the milk-producing glands in the breast. Therefore, lobular calcifications often manifest as a group or cluster of calcifications or multiple clusters. Understanding the typical distribution of fibroglandular tissue can also help detect cancers. In most women, there is little or no dense tissue in the medial and inferior breast or in the retroglandular region. Therefore, developing or focal asymmetry in these areas should be viewed with suspicion. A and B, the thin, white lines throughout the breast on mammography are Cooper ligaments (arrows). C, On ultrasonography, Cooper ligaments are also thin, white, and curvilinear (arrows). There is usually little or no tissue in the medial breast (blue triangle), inferior breast (red triangle), or retromammary fat (pink triangles). B, this interface may also be smooth and convex, especially when the tissue is dense. Asymmetric distribution of breast tissue is not uncommon and is nearly always a normal finding in the asymptomatic patient. B, Lobular calcifications are usually round, punctate, or amorphous and develop in one or more clusters. A B Chapter 5 Breast Anatomy and Physiology 131 Ductal Anatomy A good way to think of ductal anatomy is like a shrub with the base at the nipple. Large branches or major ducts begin to arborize a short distance behind the nipple. Ductal systems of the breast are not like segments of an orange or the lobes of the lung that have well-defined anatomic boundaries. Segmental calcifications involving most of a single ductal system may therefore appear to be regional in distribution. Calcifications that are in a linear or segmental distribution have a higher predictive value for cancer than those with grouped or regional distribution. When a suspicious lesion is identified, the regions between the finding and the nipple and the finding and the chest wall should be scrutinized because they are the most likely locations for additional disease. Milk produced in the lobules travels to the nipple via minor ducts that join to form major ducts. This normal structure is sometimes mistaken for a breast mass on breast self-examination. If this entire ductal system contained calcifications, the distribution may appear regional rather than segmental. A normal lactiferous sinus (arrow) can sometimes be mistaken for a breast mass on clinical examination. In this case, segmental fine linear branching calcifications fill an entire ductal system with ductal carcinoma in situ. Blood Supply the primary blood flow to the breast is via the internal mammary artery (60%). Thrombosis of superficial veins in the breast (Mondor disease) is treated conservatively with no need for anticoagulation. Lymph System the majority of lymph generated in the breast (97%) drains to the axilla, with the remainder draining to the internal mammary lymph nodes. Blood flows into the lymph node and exits through the hilum, and the lymph channels enter the node on the capsule and exit through the hilum. Metastatic deposits therefore frequently appear as a focal bulge or thickening of the cortex. The duct then tapers within the nipple, where it is called the collecting duct (a misnomer, because nothing really collects here). This is important if you are going to perform a galactogram because you will need to identify which duct is producing the abnormal discharge. If the discharging orifice cannot be identified, galactography cannot be performed. The subareolar anatomy produces a complex mammographic appearance due to the overlapping lines of the converging milk ducts and surrounding blood vessels. The superimposition of these structures can simulate masses or obscure true lesions. Retraction Versus Inversion the nipple may be retracted (pulled back slightly) or inverted (invaginated into the breast). In postmenopausal women, the ducts can become enlarged or ectatic, which can result in mild nipple retraction or hemenegative nipple discharge. If nipple retraction or inversion is of recent onset, it is concerning for breast cancer. This is a normal finding and should not be mistaken for Paget disease or other breast pathology. Nipples may have thin (A) or thick (B) surface enhancement, or may enhance centrally (C) or diffusely (D). A, Sagittal T1-weighted postcontrast image of the parasternal area showing the internal mammary artery (arrows). B, Axial T1-weighted image of the breast showing the location of the internal mammary artery and vein (circle). A, Sagittal T1-weighted postcontrast image of the breast showing the lateral thoracic artery (arrows) adjacent to the chest wall. B, Axial T1-weighted postcontrast image of the breasts showing the location of the lateral thoracic artery (circle). In this patient with invasive breast cancer, the focal cortical bulge (arrows) represents metastasis. They are typically located in the subcutaneous tissue and along the pectoral muscle and usually lie in close proximity to blood vessels. Axillary lymph nodes are divided into levels based on their location relative to the pectoralis minor muscle. Anatomy of the axilla is important in considering a biopsy approach for abnormal axillary lymph nodes. The axillary lymph nodes lie in a basin formed by the latissimus dorsi muscle at the lateral wall, the pectoralis muscles at the medial wall, and the breast at the inferior wall. Intramammary lymph nodes in the subcutaneous tissue and near a vessel in the lateral (A, arrow) or medial (B, arrow) breast. Poland Syndrome this rare disorder manifests as unilateral hypoplasia of the breast and ipsilateral chest wall. Patients may also have ipsilateral brachysyndactyly (short, fused fingers), skin webbing, and renal agenesis. Other Pectoralis Muscle Findings the pectoral muscles may also be atrophic as a result of stroke or poliomyelitis. Sternalis Muscle this nonfunctional sliver of muscle parallels the sternum (hence the name "sternalis"). The muscle is unilateral in two thirds of cases and bilateral in the remaining third. If not seen on older mammograms, a diagnostic workup is usually indicated to exclude a breast cancer. Rotter lymph nodes are located between the pectoralis major (P major) and minor muscles. Internal mammary lymph nodes are located just posterior to the intercostal muscle in the second and third interspace near the sternum. The chance of internal mammary metastases is highest in the setting of invasive breast cancer located in the medial breast. Isolated metastasis to the internal mammary lymph nodes without concurrent metastases to the axillary lymph nodes is very uncommon, occurring in about 3% of women with invasive breast cancer. If identified, the internal mammary area may be included in the radiation field following surgery to lower the risk of recurrence. B, the medial insertion of the pectoralis major muscle may bulge into the image (arrows). C, the medial insertion of the pectoralis major muscle can also have a triangular shape (arrow). D, the lateral aspect of the pectoralis major muscle can appear as a focal bulge (arrow). Later, when ovulation commences, progesterone levels rise, resulting in lobular proliferation. All but the part of the streak that ultimately develops into the breast normally involutes. If involution does not occur, supernumerary (accessory) nipples, accessory breasts, and axillary breast tissue can result. Accessory nipples are most commonly located in the inframammary fold or axilla, but can be present anywhere along the milk streak. This wayward breast tissue may enlarge during pregnancy and lactation, causing anxiety in expectant mothers. Tuberous Breasts this disorder manifests as a small breast mound with the areola projecting as a separate mound. A, this small muscle (blue arrow) that parallels the sternum can appear as a round mass medial to the pectoralis muscle (white arrow) on the craniocaudal view. B, Computed tomography of another patient showing the typical appearance of this muscle.

The evidence is stronger for coal burning in poorly ventilated houses mood disorder with psychosis order line prozac, but evidence also exists for burning of wood and other solid fuels anxiety groups 20 mg prozac purchase with visa, as well as for the fumes from high-temperature cooking using unrefined vegetable oils depression hurts test order 40 mg prozac with mastercard, such as rapeseed oil depression of t cells order prozac 10mg fast delivery. Although the effects of tobacco control on the incidence of the disease can be demonstrated in several populations anxiety urinary problems buy discount prozac 60mg online, much remains to be done, especially among women and in low-income countries. Control of exposure to other lung carcinogens, in both the general and the occupational environment, is another measure that has been taken and, at least in some instances, has had substantial effects. Priorities for the prevention of lung cancer, in addition to tobacco control, include understanding the carcinogenic and preventive effects of dietary and other lifestyle factors, control of occupational exposures, avoidance of high exposure to outdoor and indoor pollution, and elucidation of conditions that entail increased genetic predisposition to lung cancer. Occupational factors, passive smoking, and indoor exposure to radon explain a portion of these cases, and nutritional, infectious, and genetic factors are receiving attention as additional risk factors. Lung cancer was the most important epidemic of the 20th century, and it is likely to remain a major public health problem in the 21st century. It is ironic that this cancer causes more deaths than any other malignancy in the world, even though epidemiologic research has led to the identification of more than 10 causes of the disease, including the quantitatively dominant cause, tobacco smoking. Lung cancer is also a paradigm of the superiority of prevention over treatment and a reminder that scientific knowledge is not sufficient per se to ensure human health. Outdoor Air Pollution There is abundant evidence that lung cancer rates are higher in cities than in rural settings. Cohort and case­control studies are limited by difficulties in assessing past exposure to the relevant air pollutants. The exposure to air pollution has been assessed either on the basis of proxy indicators-for example, the number of inhabitants in the community of residence, residence near a major pollution source-or on the basis of actual data on pollutant levels. These data refer to total suspended particulates, sulfur oxides, and nitrogen oxides, which are not likely to be the agents responsible for the carcinogenic effect, if any, of air pollution. The combined evidence suggests that urban air pollution may confer a small excess risk of lung cancer on the order of 50%, but residual confounding cannot be excluded. In four cohort studies, assessment of exposure to fine particles was based on environmental measurements. The results of these studies suggest a small increase in risk among people classified as most highly exposed to air pollution. In 2013, the International Agency for Research on Cancer classified outdoor air pollution as an established cause of lung cancer in humans. Investigations include ecologic studies from Argentina, Chile, and Taiwan and case­control and cohort studies from Taiwan-in particular, in areas endemic for blackfoot disease, caused by chronic arsenic poisoning-Japan, the United States, and Chile. Mortality from tobacco in developed countries: indirect estimation from national vital statistics. In-home coal and wood use and lung cancer risk: a pooled analysis of the International Lung Cancer Consortium. Beta-carotene and lung cancer: a lesson for future chemoprevention investigations Cigarette smoking and bronchial carcinoma: dose and time relationships among regular smokers and lifelong nonsmokers. Cancer surveillance series: changing geographic patterns of lung cancer mortality in the United States, 1950 through 1994. Urinary levels of tobaccospecific nitrosamine metabolites in relation to lung cancer development in two prospective cohorts of cigarette smokers. Non-smoking wives of heavy smokers have a higher risk of lung cancer: a study from Japan. Risk of childhood cancer and adult lung cancer after childhood exposure to passive smoke: a metaanalysis. Two large prospective studies of mortality among men who use snuff or chewing tobacco (United States). Tobacco smoking and chewing, alcohol drinking and lung cancer risk among men in southern India. Food, Nutrition, Physical Activity and the Prevention of Cancer: A Global Perspective. Dietary carotenoids, serum beta-carotene, and retinol and risk of lung cancer in the alpha-tocopherol, beta-carotene cohort study. Isothiocyanates, glutathione S-transferase M1 and T1 polymorphisms, and lungcancer risk: a prospective study of men in Shanghai, China. Dietary intake of isothiocyanates: evidence of a joint effect with glutathione S-transferase polymorphisms in lung cancer risk. Risk factors for lung cancer among Northern Thai women: epidemiological, nutritional, serological, and bacteriological surveys of residents in high- and low-incidence areas. Radon-exposed underground miners and inverse dose-rate (protraction enhancement) effects. Radon in homes and risk of lung cancer: collaborative analysis of individual data from 13 European case-control studies. Carcinogenicity of diesel-engine and gasoline-engine exhausts and some nitroarenes. Asbestosis as a precursor of asbestos related lung cancer: results of a prospective mortality study. Dietary isothiocyanates, glutathione S-transferase-M1, -T1 polymorphisms and lung cancer risk among Chinese women in Singapore. Effect of cruciferous vegetables on lung cancer in patients stratified by genetic status: a mendelian randomisation approach. Dose-specific metaanalysis and sensitivity of the relation between alcohol consumption and lung cancer risk. Personal and family history of lung disease as risk factors for adenocarcinoma of the lung. Are smoking-associated cancers prevented or postponed in women using hormone replacement therapy Overweight, obesity, and mortality from cancer in a prospectively studied cohort of U. Body mass index, height, and prostate cancer mortality in two large cohorts of adult men in the United States. Adult height and cause-specific mortality: a large prospective study of South Korean men. Occupational exposure to beryllium and cancer risk: a review of the epidemiologic evidence. Occupational exposures to polycyclic aromatic hydrocarbons, and respiratory and urinary tract cancers: a quantitative review to 2005. Previous lung cancer disease and risk of lung cancer among men and women nonsmokers. Asthma and lung cancer risk: a systematic investigation by the International Lung Cancer Consortium. Reduction in fine particulate air pollution and mortality: extended follow-up of the Harvard Six Cities study. Incidence of internal cancers and ingested inorganic arsenic: a seven-year follow-up study in Taiwan. Dresler societies around the globe differ widely in terms of language, cultural norms, economic resources, and smoking rates, nearly all societies are afflicted with the tobacco epidemic, and a concerted effort involving the use of evidence-based strategies has the potential to save millions of lives. Implementation of public smoking bans has been linked to decreased disease from tobacco smoke (asthma exacerbations, acute coronary events, etc. Written and graphic warning labels on tobacco packages reach each user and are effective at decreasing use. After Europeans were introduced to tobacco-and nicotine addiction-consumption steadily grew in Europe. Despite its popularity, King James I of England issued "A Counterblaste to Tobacco" as one of the first documented efforts of tobacco control. Despite the proclamation from King James I, government taxation, and various religious edicts, tobacco use continued to grow throughout Europe. The Industrial Revolution included the development of cigarette-rolling machines in the late 1800s, which not only spawned mass production and increased the use of tobacco but also shifted the bulk of tobacco use to cigarette smoking. Cigarettes are smoked with deeper inhalation than pipe tobacco or cigars, leading to absorption in the pulmonary parenchyma rather than in buccal and pharyngeal parenchyma. As a result of pulmonary delivery, a much more rapid and intense peak in nicotine levels leads to a greater addiction potential. This more addictive product, combined with industrialization, global transportation, and aggressive marketing to men, women, and children across the globe, led to an explosion in tobacco use and a highly profitable industry. The epidemiologic relationship between smoking rates in a population and death rates attributable to smoking has been extensively analyzed on a global scale, and fascinating patterns tend to recur predictably from one society to another. Stage I of a smoking epidemic represents initiation, with low smoking rates and very low death rates due to smoking. During this time, smoking among women just starts to increase, but there are few deaths. During this time, the death rate among men continues to rise following the 20-year to 25-year lag from the peak in smoking, and the death Many lives have been saved by tobacco control over the past 50 years. However, due to ongoing use of tobacco, millions of preventable deaths have occurred. Tobacco use has steadily grown and spread across the globe to such a degree that tobacco-induced death and disability have attained epidemic proportions. Many diseases and conditions attributable to smoking, such as cerebrovascular disease, heart disease, emphysema, and cancer-especially lung cancer-have led to death and disability. This chapter highlights the growth, spread, and current status of the tobacco epidemic worldwide; global efforts to curb the use of tobacco; and the potential impact of control measures on outcomes, specifically lung cancer­related mortality. As tobacco use is encouraged, promoted, and perpetuated with a variety of mechanisms, there is a need to intervene and provide tobacco prevention and cessation in multiple dimensions. Various tobacco-control strategies have been used in the past, with varying degrees of success across different populations. Lopez curve from 1994 demonstrating the stages of the tobacco epidemic in countries with developed economies as indicated by the rates of smoking and smoking-attributable deaths (based on lung cancer data) for men and women. This rise and fall in the number of smoking-related deaths closely parallels the rise and fall in lung cancer incidence and mortality rates in the United States. This increase in male smoking prevalence eventually led to a peak and decrease in lung cancer­ related deaths among men approximately 20 years later. According to the Lopez model, the incidence of lung cancer and lung cancer­related mortality should continue to fall for men and women in the United States as smoking rates have declined. Despite the decrease in tobacco use in some of the aforementioned countries, tobacco use is growing in other countries, particularly India, Japan, and China, where societal and cultural shifts are leading to growing numbers of people who smoke, particularly women. The growth of the global population, the spread of tobacco use to more countries, and the rising rates of smoking among women are all contributing to a projected rapid global increase in tobacco use and tobacco-induced deaths. The toll of tobacco is considerable, with an estimated 100 million deaths globally in the 20th century; currently, 5 million deaths are reported annually, with 1 billion deaths projected globally in the 21st century if the trajectory is not changed. With the irrefutable evidence that this aggressively marketed, addictive product leads to premature death and disability among people who smoke (with one in two people who continue to smoke dying of tobacco-related disease) and illness in people exposed to secondhand smoke, tobacco control not only can be seen as a public health crisis but also can be viewed from ethical and human rights perspectives. Attempts at tobacco control have varied among different countries, and often by state or province within a country. The production, marketing, and distribution of cigarettes are predominantly controlled by a few international corporations: Philip Morris, Altria, British American Tobacco, Japan Tobacco, R. The production, marketing, and distribution of cigarettes had become a globally organized network, and although the battle was being fought on many fronts, there was no global consensus on measures of tobacco control, and unified countermeasures to combat this problem were lacking. This unprecedented agreement between party nations became the first international legal instrument for a unified approach to combat the global tobacco epidemic. The multidimensional treaty delineates universal standards declaring the dangers of tobacco and outlines strategies for limiting its use worldwide through provisions regarding education, production, advertisement, distribution, sale, and taxation. Examples of successful tobacco-control strategies are discussed here using these categories as a construct. Monitor Tobacco Use and Prevention Policies If an epidemic is to be treated, it must first be measured. It is crucial to dramatically improve global surveillance of tobacco use among adults and youths. Until recently, the extent of the epidemic has not been well documented, particularly in developing countries. The system comprises three school-based components (the Global Youth Tobacco Survey, the Global School Personnel Survey, and the Global Health Professions Student Survey) and one adult component (the Global Adult Tobacco Survey). These surveys contain the same basic data fields in all queries, and individual countries can add other specific points if they wish. The system involves three sequential phases: a survey workshop, data analysis, and a programmatic workshop that is designed to determine the needs and priorities to suit that area at that time. The surveys are intended to be conducted shortly after the implementation of control measures and then repeated every few years. Monitoring with reliable tools to obtain accurate data is the only way to truly determine where tobacco control is most needed, what type of tobacco control is most appropriate, who the target audience should be, and the outcomes of any implemented policies. Protect People From Tobacco Smoke the harm that smoking causes to people who smoke has been a driving force for tobacco control, but the effects of smoking on nonsmokers has led to another arm of tobacco control: protecting all people from tobacco smoke. Secondhand smoke, also known as environmental tobacco smoke or passive smoking, is a risk factor for asthma, bronchitis, and respiratory infections and also has been demonstrated to be a risk for the development of lung cancer and cardiovascular disease. Rates of lung cancer are higher for women who have never smoked but have husbands who smoke, with a relative risk ranging from 1. In analyzing hospital data, the authors found that the rate of hospitalizations for childhood asthma was increasing 5. In addition, after implementation of the policy, the rate of admissions for acute coronary syndrome decreased by 14% among active smokers, by 19% among former smokers, and by 21% among individuals who had never smoked. When the 12-month periods before and after implementation of the policy were compared, the rate of admissions for acute coronary syndrome fell by 17%. In comparison, during that time in England (where there were no smoke-free laws), the rate fell by only 4%, and during the preceding decade in Scotland, the rate decreased by an average of 3% per year. The self-reported exposure to secondhand smoke decreased among nonsmokers, and this decrease was validated on the basis of lower cotinine levels in those individuals.

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Large-bore nitinol stents for malignant superior vena cava syndrome: factors influencing outcome depression pregnancy prozac 20 mg generic. Metastatic bone disease: clinical features anxiety drugs order 40mg prozac with mastercard, pathophysiology and treatment strategies anxiety light headed 40 mg prozac buy mastercard. Fluorine-18 deoxyglucose positron emission tomography for the detection of bone metastases in patients with non-small cell lung cancer mood disorder in child prozac 20 mg buy. Clinical significance of blood chromogranin A measurement in neuroendocrine tumors depression symptoms light sensitivity 40 mg prozac order visa. Parathyroid hormone-related protein measured at the time of first visit is an indicator of bone metastases and survival in lung carcinoma patients with hypercalcemia. Tumor-induced hypercalcemia and parathyroid hormone-related protein in lung carcinoma. Implications of hypercalcemia with respect to diagnosis and treatment of lung cancer. Cancer-related microangiopathic hemolytic anemia: clinical and laboratory features in 168 reported cases. Tumor-related leucocytosis and chemotherapy-induced neutropenia: linked or independent prognostic factors for advanced non-small cell lung cancer Radiosurgery for spinal metastases: clinical experience in 500 cases from a single institution. Multifractionated image-guided and stereotactic intensity-modulated radiotherapy of paraspinal tumors: a preliminary report. Leptomeningeal metastasis from non-small cell lung cancer: survival and the impact of whole brain radiotherapy. Clinical outcomes of leptomeningeal metastasis in patients with non-small cell lung cancer in the modern chemotherapy era. Leptomeningeal carcinomatosis in non-small-cell lung cancer patients: impact on survival and correlated prognostic factors. Neoplastic meningitis from solid tumors: new diagnostic and therapeutic approaches. Resection of adrenal metastases from non-small cell lung cancer: a multicenter study. Clinical risk factors and timing of recurrent venous thromboembolism during the initial 3 months of anticoagulant therapy. Anticoagulation for the initial treatment of venous thromboembolism in patients with cancer. Risk of recurrent venous thromboembolism according to malignancy characteristics in patients with cancer-associated thrombosis: a systematic review of observational and intervention studies. Venous thromboembolism in patients receiving multimodality therapy for thoracic malignancies. Paraneoplastic Raynaud phenomenon and idiopathic thrombocytopenic purpura in non-small-cell lung cancer. Thrombotic thrombocytopenic purpura and bone marrow necrosis as the initial presentation of lung cancer. Pulmonary tumor thrombotic microangiopathy caused by lung adenocarcinoma: case report with review of the literature. Paraneoplastic limbic encephalitis as a cause of new onset of seizures in a patient with non-small cell lung carcinoma: a case report. Ri antibodies in patients with breast, ovarian or small cell lung cancer determined by a sensitive immunoprecipitation technique. Anti-Hu paraneoplastic syndrome presenting with brainstem-cerebellar symptoms and Lambert-Eaton myasthenic syndrome. Small-cell lung cancer, paraneoplastic cerebellar degeneration and the Lambert-Eaton myasthenic syndrome. Surgery for non-small cell lung cancer: systematic review and meta-analysis of randomised controlled trials. Adjuvant chemotherapy of lung cancer: methodologic issues and therapeutic advances. Treatment of advanced non­ small-cell lung cancer in the elderly: results of an international expert panel. Single-agent versus combination chemotherapy in advanced nonsmall-cell lung cancer: the cancer and leukemia group B (study 9730). Outcomes for elderly, advanced-stage nonsmall-cell lung cancer patients treated with bevacizumab in combination with carboplatin and paclitaxel: analysis of Eastern Cooperative Oncology Group Trial 4599. Lack of prognostic significance of p53 and K-ras mutations in primary resected nonsmall-cell lung cancer on E4592: a Laboratory Ancillary Study on an Eastern Cooperative Oncology Group Prospective Randomized Trial of Postoperative Adjuvant Therapy. Clinical and biological features associated with epidermal growth factor receptor gene mutations in lung cancers. K-ras and p53 mutations are an independent unfavourable prognostic indicator in patients with non-small-cell lung cancer. Mutations of p53 and K-ras genes as prognostic factors for nonsmall cell lung cancer. Lung cancer in women: age, smoking, histology, performance status, stage, initial treatment and survival. Sex-associated differences in survival of patients undergoing resection for lung cancer. Sex-associated differences in nonsmall cell lung cancer in the new era: Is gender an independent prognostic factor Preoperative staging of nonsmall-cell lung cancer with positron-emission tomography. Prognostic significance of p53 alterations in patients with nonsmall cell lung cancer: a meta-analysis. Role of p53 as a prognostic factor for survival in lung cancer: a systematic review of the literature with a meta-analysis. Mutations of the epidermal growth factor receptor tyrosine kinase domain and associations with clinicopathological features in non-small cell lung cancer patients. The presence of mutations in epidermal growth factor receptor gene is not a prognostic factor for long-term outcome after surgical resection of non-small-cell lung cancer. Phosphoglycerate kinaseoverexpressing lung cancer cells reduce cyclooxygenase 2 expression and promote anti-tumor immunity in vivo. Proteomic analysis of cytokeratin isoforms uncovers association with survival in lung adenocarcinoma. Other neuroendocrine malignancies of the lung are carcinoid and large cell neuroendocrine tumors. A shift in the prevailing lung cancer cell type occurred in the latter decades of the 20th century. In the 1950s, cases of squamous cell carcinoma outnumbered cases of adenocarcinoma, the second most common type of lung cancer, by a ratio of 17:1. Since that time, polycyclic aromatic hydrocarbons, a known carcinogen specifically associated with squamous cell carcinoma of the lung, have been reduced in manufactured cigarettes, with a relative decline in the incidence of squamous cell carcinoma. These cancers have been linked to tobacco-specific nitrosamines, which are still present in cigarettes in substantial quantities. The differential diagnosis for ground-glass lesions that persist after 3 months includes focal fibrosis, atypical adenomatous hyperplasia, and indolent adenocarcinoma. On imaging, primary lung cancers vary in their appearance from a solitary pulmonary nodule to amorphous consolidation. They may also have varying densities, ranging from ground-glass attenuation (defined as slightly increased lung density through which vessels can be seen), to mixed ground-glass and solid density lesions, to solid tumors. A lung cancer may be cavitary at presentation or may cavitate during the course of treatment. The early, common, and uncommon imaging features of lung cancer are discussed in this chapter. Primary lung cancer is the leading cause of cancer mortality worldwide and constitutes a major public health challenge. In the United States, lung cancer is as deadly as the next three causes of cancer deaths combined (prostate, colorectal, and pancreatic cancer in men; breast, colorectal, and pancreatic cancer in women). Other important characteristics include border contour, shape, patterns of calcification, presence of macroscopic fat, and cavitation. Axial computed tomography image with contrast material in (A) lung windows and (B) soft-tissue windows shows a sizeable, irregular, spiculated, heterogeneously enhancing mass in the left lower lobe in a patient with severe smoking-related emphysema. The large size, irregular borders, and enhancement are all characteristics associated with malignancy. Size the larger a nodule is at presentation, the higher the likelihood that it is malignant. For a solid, discrete pulmonary nodule, the risk of cancer is categorized according to size. Nodules between 6 mm and 10 mm have a 24% chance of malignancy, which increases to 33% for nodules 11 mm to 20 mm. Solid lesions greater than 20 mm in diameter have an 80% chance of malignant histology. Nodules that decrease in size over time are most likely infectious or inflammatory in etiology. Conversely, nodules that enlarge while under observation are considered malignant until proven otherwise. Consequently, established algorithms for managing pulmonary nodules are promulgated by the Fleischner Society. For follow-up of solid nodules, slight variations may exist, depending on the risk stratification of the individual. In a highrisk person such as a smoker, nodules up to 4 mm should have a single follow-up 12 months after presentation. For nodules greater than 6 mm to 8 mm, the initial follow-up is at 3 months to 6 months, followed by reassessment at 9 months to 12 months and again at 24 months, if unchanged. Heterogeneous ground-glass lesions or lesions with internal alveolar collapse are compatible with Noguchi type B lesions. These part solid and part ground-glass nodules have the highest malignancy rate (63%). If the solid portion is less than 5 Density Solid nodules have a low overall malignancy rate of 7%. Cancers may be multilobulated, although smooth and wellcircumscribed nodules may be malignant 21% of the time. Axial computed tomography image with contrast material in lung windows shows a large multilobulated right upper lobe lesion having both solid and ground-glass attenuation. Shape Although most lung cancers manifest as a nodule or mass, the overall shape of carcinomas varies. Some adenocarcinomas, particularly the mucin-producing subtype, can present as ill-defined parenchymal consolidation caused by mucin filling the alveoli; this is radiographically indistinguishable from pneumonia but will persist despite antibiotic treatment. An uncommon manifestation of early lung cancer is a focally thickened or impacted bronchus, sometimes with peripheral inflammatory changes. Lesions with larger solid components persistent after 3 months should be reassessed by biopsy and/or resected. When a dominant lesion or lesions with part solid components are present in the setting of other nodules, biopsy and/or lung-sparing surgical resection is advised. Benign calcifications are central, diffuse, laminar, or socalled popcorn in shape. Nonetheless, preexisting calcifications in the lungs such as granulomas may become engulfed by a tumor, and carcinoid tumors can have punctate calcifications, making the presence of calcification less reliable in determination of benign disease. The presence of macroscopic fat is an indication of benignity and favors the diagnosis of hamartoma, a smooth muscle neoplasm having no malignant potential. However, low attenuation in a nodule without the presence of actual fat can suggest necrosis or the presence of mucin. Enhancement Neoplastic pulmonary nodules have been shown to have increased vascularity compared with benign nodules, suggesting that nodule enhancement can be used as a distinguishing characteristic in evaluating indeterminate solid lesions. One type of cavitation occurs when tumors outgrow their blood supply and undergo central necrosis. Some adenocarcinomas exhibit a phenomenon of pseudocavitation caused by bronchial or alveolar expansion within the tumor. Statistically, more malignancies are found in the upper lobes, especially the right upper lobe. Multiple small, solid nodules that are smaller than 6 mm are most likely to be postinfectious/postinflammatory and are considered low risk for malignancy. Chest radiography is the first-line imaging modality for individuals with symptoms referable to the chest, such as cough, shortness of breath, hemoptysis, and chest pain. Chest radiographs are also obtained as baseline examinations before procedures, including surgery. The chest radiograph, therefore, provides an early opportunity to detect both symptomatic and asymptomatic lung cancers. The error rate for the detection of lung cancer by chest radiography is generally accepted to be 20% to 50%, which is likely the result of a combination of factors. Although metal objects such as jewelry and clothing fasteners are easy to identify, nonmetal items such as buttons, hair, or clothing decorations may be confounding. Lastly, the ability of the patient to achieve full lung inspiration on the radiograph affects the conspicuity of lesions. Specific regions such as the hila, where the pulmonary arteries and veins and the airways converge, may also be difficult to evaluate. Not infrequently, pneumonia can be the first indication of a central obstructing or partially obstructing lesion. Chronic lung disease such as pulmonary fibrosis may also hinder identification of a focal abnormality. It is worth noting that preexisting chronic lung disease is a risk factor for lung cancer. This heterogeneous consolidation filling and expanding the left lower lobe on axial computed tomography in lung windows is proven by examination of a biopsy specimen to be a well-differentiated mucinous adenocarcinoma with bronchoalveolar features. Hazy opacity also appears along the left paratracheal region just above the aortic arch.

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