Original report. Congenital unilateral pulmonary vein atresia - Radiologicfindings in three adult patients.

OBJECTIVE. The purpose of our study is to describe the radiologic findings of adult patients presenting with congenital unilateral pulmonary vein atre sia. CONCLUSION. Chest radiography in affected patients typically reveals a smal l hemithorax and ipsilateral pulmonary artery as well as ipsilateral septal thickening. CT shows, in addition, ground-glass attenuation, the absence o f a pulmonary vein connection to the left atrium, and abundant mediastinal venous collateral vessels. MR imaging is helpful in further characterizing the vascular abnormalities. Angiography may help to confirm the diagnosis.