Cystic Lung Changes in a Thin Section CT in an Asymptomatic Young Adult with Unilateral Pulmonary Vein Atresia: A Case Report

Unilateral pulmonary vein atresia is a very rare congenital anomaly usually associated with high morbidity and mortality (1-4). Most of the patients reported were in infancy or early childhood with recurrent episodes of hemoptysis or pneumonia. Based on the gravity of symptoms, coil embolization and pneumonectomy are the usual forms of treatment (5, 6). There have been few radiologic reports about the findings of systemic collaterals to the pulmonary vessels such as interlobular septal thickening, ground-glass opacity and subpleural nodules (1, 2, 4, 7). We present the case of a 20-year-old male, who had been an asymptomatic pulmonary vein atresia and systemic-to-pulmonary collaterals patient. We observed cystic changes on right upper lobe of the lung, a rarely reported condition, and the septal thickenings, bronchovascular bundle thickening, and groundglass opacity which represent peripheral collaterals on thin section computed tomography (CT).