Pulmonary sarcoidosis: Report of four cases

Sarcoidosis is a systemic disease of unknown etiology. Four cases of histologically proved sarcoidosis are undergone chest radiography and high-resolution computed tomography in 13 months. Bilateral hilar lymphadenopathy is the most common radiographic finding. Other characteristic findings include interstitial lung disease, calcification of affected lymph nodes, and pleural effusion and thickening [1]. High-resolution computed tomography is more sensitive than chest radiography in detecting the presence and extent of pulmonary sarcoidosis. Typical findings include small nodules in a perilymphatic distribution along the peribronchovascular bundles, adjacent to the interlobular septa and subpleurally including the fissure [2,3].