Congenital Descending Aorta to Pulmonary Vein Fistula: Imaging Findings and Differential Diagnosis.

ABSTRACT

Congenital descending aorta to pulmonary vein fistula (cDAPVF) is an extremely rare vascular abnormality that is usually diagnosed in infancy. Patients can become symptomatic, presenting with heart failure and hemoptysis. It is important to differentiate cDAPVF from its potential mimickers due to differences in treatment implications. In this pictorial essay, we will highlight the pathophysiology and key imaging findings of cDAPVF and how to separate it from its more common mimickers using cases that presented at our institution.