An aberrant origin of the left coronary artery (LCA) from the right

. coronary cusp (RCC) is an extremely rare congenital anomaly.[1] The most commoncoronary artery Abnormality is the separate origin of the left anterior descending (LAD) artery and the left circumflex (LCX) artery, with an incidence of 0.41%, followed by LCX arising from the right coronary artery (RCA), with an incidence of 0.37%.[2,3] Angelini (2007) found that “the aberrant origin of the left coronary artery (LCA) from the right coronary cusp (RCC) being extremely rare (0.15% incidence)”.

The purpose of this paper is to show an extremely rare anomalous origin of LAD from the right coronary cusp (RCC).

A future fatal result can occur if anomalous coronary artery disease has not been identified and promptly treated. In such symptomatic patients, definitive diagnosis with coronary angiography and rapid surgical intervention is important. Data regarding the outcomes of surgical intervention in asymptomatic patients are still lacking. Noninvasive examinations including echocardiography and computed tomography angiography can help with diagnosis and are growing in popularity.

Authors:

Dr. Shahab Masoumi,

and

Dr. Marjan Assefi