A unique case of unilateral pulmonary edema from partial anomalous pulmonary venous return in conjunction with superior vena cava stenosis.

While PAPVR is most commonly an incidental finding on chest CT, a unique case is presented where PAPVR in conjunction with SVC stenosis resulted in chronic symptomatic asymmetric pulmonary edema. The case reflects an unusual anatomic cause of unilateral edema, as a combination of both congenital and subsequently acquired anatomic anomalies.