A Case of a Special Type of Coronary Artery-Coronary Sinus Fistula.

Coronary artery fistula (CAF), a rare congenital cardiovascular anomaly with low incidence, is prone to diagnostic oversight. This case report details the diagnosis and management of a CAF patient initially identified by ultrasound and confirmed by digital subtraction angiography (DSA). It elucidates CAF pathogenesis and the diagnostic utility of ultrasound, aiming to inform clinical practice.