Computed tomography of "pleuroma"--a cancer mimicking atelectatic pseudotumor of the lung.

Characteristic radiographic features of "pleuroma"--an atelectatic pseudotumor of the lung, have previously been described. Knowledge of the existence of this lesion and its appearance is necessary if confusion with lung carcinoma is to be avoided. In a remarkable case these factors are demonstrated. In addition to conventional chest x-rays linear tomography and computed tomography was used to confirm the diagnosis of a "pleuroma" and to exclude a suspected carcinoma of the lung. It is thought that the combination of radiographic findings and CT patterns may enhance the possibilities of identifying and confirming the lesion and be helpful in preventing morbidity and mortality by preventing unnecessary invasive tests and/or surgery.