The first anterior branch of abdominal aorta is the celiac trunk which has a short course and divides into three branches the common hepatic, left gastric and splenic arteries. Quite commonly, we see anatomical variations in the gastric and the hepatic arteries. However a relative constant branch of the celiac artery is the splenic artery and aberrances in the origin of the splenic artery are rarely seen. Superior Mesenteric Artery is the second anterior branch of abdominal aorta which arises at the level of the first lumbar vertebra. This is a case of aneurysm arising from the aberrant splenic artery which is not following the normal origin and course; instead, it arises from the right antero lateral side of SMA which was first diagnosed on ultrasound (gray scale and Doppler) and confirmed on CECT abdomen.