Abstract

A 55-year-old woman with an incidentally detected bronchial artery-to-pulmonary artery fistula (BPF) with dilation of 33-mm maximum diameter (Fig 1) underwent prophylactic embolization to avoid potential rupture and catastrophic hemorrhage. Three systemic arteries, the right bronchial, right superior thyroid (Fig 2), and aberrant right subclavian arteries, converged into a sac-like component of 16-mm diameter at the superior mediastinum. The sac proceeded as a single dilated outflow vessel meandering downward in the anterior mediastinum, narrowing and draining into the proximal part of the pulmonary artery.

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