A rare combination: Single coronary artery originating from the left sinus of valsalva coexisting with perimembranous ventricular septal defect.

Single coronary artery (SCA) is a rare congenital anomaly in which the entire coronary system arises from a solitary ostium. Although an uncommon congenital anomaly, SCA is encountered more frequently in the presence of other congenital cardiac malformations such as persistent truncus arteriosus, tetralogy of Fallot, transposition of the great arteries, or pulmonary atresia. In this report, we present a case of SCA arising from the left sinus of valsalva coexisting with perimembranous ventricular septal defect.