This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Spleen, Subject name: Surgery
[{'content': 'Splenunculi are commonly seen in \nSelect and explain. \nA. Hilum of spleen, B. Tail of spleen, C. Mesocolon, D. Splenic ligaments', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A. (Hilum of spleen) (1103-B & L 25th)ACCESSORY SPLEEN (Splenunculi) - probably results from a failure of infusion of splenic embryonic tissues* They are located near the hilum of the spleen in 50% of cases and related to the splenic vessels or behind the tail of pancreas in 30%. The remainder are located in the mesocolon or the splenic ligaments* These are functionally similar to the spleen and while performing splenectomy for blood dyscrasias removal of these accessory spleens are obligatory, otherwise there always remains a chance of recurrence* Axis of spleen enlargement projects into- Greater sac**', 'role': 'assistant'}]