Congenitally absent right coronary artery in adult

Abstract

Background: A 44-year-old male patient with atrial fibrillation and cardiac insufficiency (NYHA IV) presented for evaluation for heart transplantation. He was referred for cardiac CT for assessment of potential restrictive cardiomyopathy and evaluation of his right ventricle. Cardiac CT was performed utilizing a dual-source CT scanner. ECG-adapted tube current was used to reduce radiation exposure. No pericardial calcifications were noted. The right atrium and the inferior vena cava were dilated with 82 x 58 mm and 47 mm diameter, respectively. There was no evidence of coronary artery disease.

Single coronary artery with superdominant left circumflex artery: A rare coronary anomaly

“…[1] Congenital absence of RCA with dominant LCx supplying the whole RCA territory (superdominant) is extremely rare and accounts for about 0.003% of reported coronary anomalies. [2]…”

Congenitally absent right coronary artery

“…Coronary artery anomalies are found in 1.3% of patients undergoing coronary angiography [1,2]. Congenital absence of RCA is extremely rare and accounts for about 0.003% of coronary anomalies [3,4]. It has been reported that most congenital anomalies of the coronary arteries are benign.…”