Accessory spleen or splenunculus is a congenital ectopic tissue with incidence rate ranging from 10-30% in autopsy series. Most commonly situated near splenic hilum and supplied by splenic artery. Developmentally, it is due to failure of fusion of splenic nodules in the dorsal mesogastrium. Although most of the time it is an incidental finding, awareness of its presence is important since it may mimic lymphadenopathy and tumor during diagnostic procedures. We report a rare case of accessory spleen in the posterior wall of omental bursa with vascular supply from left gastric artery.
