Successful bronchial artery embolization for racemose hemangioma of the right bronchial artery with pulmonary artery dilatation: A case report

An asymptomatic patient was incidentally found to have a markedly dilated right pulmonary artery A7 (13 mm in diameter) on contrast-enhanced computed tomography (CT) of the chest. Intra-procedural CT aortography revealed that a right bronchial artery arising from the aorta and an ectopic right bronchial artery originating from the right thyrocervical trunk were dilated and tortuous, and communicated with right pulmonary artery A7. A bronchial artery aneurysm was also identified. A diagnosis of racemose hemangioma of the right bronchial artery was made, and coil embolization of the 2 bronchial arteries was performed. Follow-up contrast-enhanced CT at 2 years and 3 months after embolization showed that the dilated pulmonary artery had reduced to 7 mm in diameter. We believe that active therapeutic intervention is important to prevent potentially fatal complications such as aneurysm rupture.