Dual origin of the circumflex artery is an extremely rare anomaly. We report a rare case of a left circumflex artery arising from the left mainstem and an anomalous circumflex artery from a separate ostium in the right coronary sinus. Both these arteries supplied the circumflex territory. The potential pathological significance of the anomaly and pitfalls of the misdiagnosis are also discussed.

AND ANOMALIES The right coronary artery (RCA) arises from the right coronary sinus and runs in the right AV groove (Fig. 5-1). Generally, the conus artery and the sinoatrial artery arise from the RCA. In approximately 85% of individuals, the posterior descending coronary artery arises from the RCA (defined as a right dominant coronary circulation). The left main coronary artery arises from the ...

Address for Correspondence: B.V. Murlimanju, MD, Assistant Professor, Department of Anatomy, Kasturba Medical College, Manipal University, Mangalore – 575004, India. Telephone No. 91 824 2211746, Telefax No. 91 824 2421283, E-Mail: [email protected] Access this Article online Quick Response code Web site: 1 Department of Anatomy, K.S. Hegde Medical Academy, Nitte University, Deralakatte, Ma...

Ischemic rupture of the anterolateral papillary muscle is uncommon due to its dual blood supply. It usually follows an ischemic event involving branches of the left circumflex or left anterior descending arteries. We present a case of a patient admitted with an acute inferior wall myocardial infarction and an isolated distal right coronary artery occlusion. Acute mitral regurgitation with ruptu...

A 57 year old, diabetic female presented in emergency department with atypical chest pain. Her physical examination was unremarkable. Routine blood and urine biochemistry were within normal limits. Electrocardiogram showed left bundle branch block, with nonspecific ST-T changes. Chest X-ray and 2D-echocardiogram revealed no abnormality. Coronary angiography demonstrated existence of only left a...

BACKGROUND Injury to the circumflex artery after mitral valve (MV) repair or replacement is a recognized complication of this procedure. We designed an echocardiographic method to visualize the course and flow of the circumflex artery, to detect iatrogenic injury to this structure intraoperatively, as well as to predict the coronary dominance pattern in MV surgery patients. METHODS After Ethi...

INTRODUCTION The lateral circumflex femoral artery usually originates from the lateral side of the initial part of the deep femoral artery, or less frequently from the femoral artery. If it is a branch of the femoral artery, it arises directly above the point of origin of the deep femoral artery. The aim of this study was to determine the origin of the lateral circumflex femoral artery, its ori...