Cryptogenic Acute Fibrinous and Organizing Pneumonia: A Case Report

We describe the case of a middle-aged male who presented with incidental findings of a left retrocardiac opacity seen on a chest radiograph. Subsequent computed tomography (CT) of the thorax showed multiple subpleural lesions with central necrosis. A diagnosis of acute fibrinous organizing pneumonia was made histologically upon biopsy of the subpleural lesions. The patient responded well to steroids, with full resolution of the subpleural lesions on repeat CT of the thorax. This report illustrates a case of acute fibrinous organizing pneumonia wherein the patient responded well to corticosteroids.