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Variant Origin of Common Hepatic and Middle Colic Artery-A Case Report

Case report

Abstrak

Variasi hepatic biasa atau kolik arteri tengah boleh menyumbang kepada komplikasi yang timbul ketika pembedahan hati dan pembedahan abdomen bahagian atas. Kes corak bercabang ganjil pada cabang ventral aorta abdominal pada mayat lelaki berusia 50 tahun dilaporkan. Batang seliak berasal daripada aspek ventral bagi aorta abdominal dan bercabang kepada gastrik kiri dan arteri limpa. Arteri hepatic umum berasal secara langsung dari abdominal aorta, 0.2 cm di bawah asal batang seliak. Arteri kolik tengah berasal daripada segmen proksimal bagi arteri limpa, bukannya daripada arteri mesenterik unggul. Satu cabang berasingan dari kolik pertengahan mesenterik arteri unggul tidak dilihat. Variasi anatomi dalam corak bercabang batang seliak dan arteri mesenterik unggul tidak kerap, bagaimanapun asal-usul variasi seiring cawangan batang seliak dan arteri kolik pertengahan adalah anomali yang jarang berlaku dan oleh itu, pengetahuan mengenainya akan membantu dalam prosedur pembedahan abdomen dan imej berpandukan intervasi.

Abstract

Variation of common hepatic or middle colic artery may account for the complications which arise during liver transplantation and surgeries of upper abdomen. We here report a case of an anomalous branching pattern of ventral branches of abdominal aorta in a 50-year-old male cadaver. The coeliac trunk originated from the ventral aspect of abdominal aorta and bifurcated into left gastric and splenic arteries. The common hepatic artery originated directly from the abdominal aorta, 0.2cm inferior to the origin of coeliac trunk. The middle colic artery originated from the proximal segment of splenic artery instead of its usual origin, the superior mesenteric artery. A separate middle colic branch of superior mesenteric artery was not observed. Anatomical variations in the branching patterns of coeliac trunk and superior mesenteric arteries are not infrequent. However, the concomitant variant origins of branches of coeliac trunk and middle colic artery is a rare anomaly and its knowledge would therefore be helpful in operative procedures of abdomen and image guided interventions.