Conus branch fistula to main pulmonary artery: a rare coronary anomaly that may cause chest pain in a pediatric patient

Abstract

Coronary artery fistulas (CAFs) are rare congenital coronary anomalies where abnormal communication develops between coronary arteries and cardiac chambers or a thoracic great vessel. CAF is usually diagnosed incidentally with cardiac imaging. Although the majority of fistulas are congenital, iatrogenic CAFs are increasingly observed due to multiple cardiac interventions or direct chest trauma. CAFs in children may result in hemodynamically significant problems due to vascular shunting. We report an 11-year-old boy who presented with atypical chest pain and was found to have a rare variant of CAF; fortunately, he had no significant hemodynamic complications.

Keywords

• echocardiography
• cardiac computed tomography
• conus branch
• fistula