Pulmonary CT findings in Behçet disease.

A 32-year-old man with Behçet syndrome presented with hemoptysis and abnormal chest radiography. A 3 cm opacity was present in the apical posterior segment of the left upper lobe and the hila were enlarged with lobulated contours. Computed tomography revealed bilateral pulmonary artery aneurysms, a complication of Behçet syndrome. Computed tomography is recommended for the evaluation of patients with Behçet syndrome who have abnormal chest radiography.