An Anomalous Origin of the Accessory Splenic Artery and its Significance in Surgical and Radiological Contexts: A Case Report.

Abstract: During the routine dissection classes for undergraduate medical students, we encountered a rare anatomical variation concerning the aberrant origin and course of the accessory splenic artery. The splenic artery is one of the direct branches of the coeliac trunk. During its tortuous course, it supplies the pancreas with greater curvature of the stomach and spleen. The accessory splenic artery originating from the main trunk of splenic artery, too, follows the same tortuous course while running through the lesser sac and supplies the posterior part of the spleen via the splenophrenic ligament. The accessory splenic artery is gaining clinical importance during various GI surgeries and some radiological procedures. The unnoticed accessory splenic artery damage may result in tremendous bleeding while performing GI-based surgery or radiological investigation like angiography. In our case report, the accessory splenic artery is an aberrant origin from the initial part of the actual splenic artery. Knowledge regarding the origin, course and termination is of utmost importance to GI surgeons, radiologists, and anatomists.