"Brass Knuckle"-Like Right Coronary Artery.

A 60-year-old asymptomatic woman was admitted to hospital for an invasive evaluation of a patent foramen ovale and a suspected formation within the right atrium. Transthoracic and transesophageal echocardiography excluded both, but instead unveiled a huge brass knuckle-like ectasia of the right coronary artery meandering down the lateral wall of the right atrium. Coronary anomalies are common and mostly discovered incidentally. Thus, diagnostic...