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Category Pathology

Respiratory Cytology

Techniques and Applications Fiber-Optic Bronchoscopy—Fact Sheet Indications for Fiber-Optic Bronchoscopy ▪ Persistent cough ▪ New solitary pulmonary nodule ▪ Persistent chest radiographic infiltrate ▪ Hemoptysis ▪ Bronchial obstruction ▪ Atelectasis ▪ Persistent localized wheezing ▪ Confirmation of abnormal sputum cytology…

Inflammatory and Fibrosing Pleural Processes

Organization of Pleural Effusion Organization of Pleural Effusion—Fact Sheet Definition ▪ Nonspecific repair reaction of an exudative or bloody pleural effusion Clinical Features ▪ Symptoms are related to the primary disease or the presence of fluid and include cough, chest…

Pleural Involvement by Extrapleural Neoplasms

Introduction Over 150,000 malignant pleural effusions occur each year in the United States, the majority of which result from pleural involvement by extrapleural malignancies. Although pleural involvement generally occurs at an advanced stage of disease, in some cases symptoms related…

Primary Pleural Neoplasms

Introduction In contrast to the common pleural metastases from pulmonary and extrapulmonary malignancies, primary tumors of the pleura constitute a relatively rare group of benign and malignant neoplasms, with different pathways of differentiation and histogenesis reflecting the complexity of the…

Benign Neoplasms of the Lungs

Benign Mesenchymal Neoplasms Not surprisingly, the lung is a source of virtually all described mesenchymal tumors. Although leiomyomas, schwannomas, lipomas, neurofibromas, hemangiomas, and lymphangiomas can originate in the lung, one should be certain that such lesions are not metastatic low-grade…