Author(s): G. Kiran Kumar1, V. Manmadharao2, K. B. Muralidhar3, K. Prakash4, K. V. A. Devara5
ABSTRACT: A hemangiopericytoma is a rare, soft-tissue tumor of vascular origin derived from a pericyte of Zimmerman, which is a modified smooth muscle cell that surrounds the small blood vessels. Hemangiopericytomas can occur wherever there are vascular capillaries. However hemangiopericytoma from omentum is very rare. We describe a case of a hemangiopericytoma found in the lesser omentum. A 53-year-old man presented with pain abdomen, lump abdomen. Preoperative imaging indicated that the tumor was in the lesser sac without invasion of other organs. A complete resection was performed. The histological pattern supported the diagnosis of a hemangiopericytoma. A complete resection is the best way to treat a hemangiopericytoma. Recognizing the presence of a hemangiopericytoma in the lesser omentum requires appropriate surgery.