Hemangiopericytoma of the Greater Omentum with Pelvic Metastasis: A Very Rare Occurrence

Abstract

Hemangiopericytoma arising from the greater omentum is very rare and only 14 case reports were found in the English literature. Here we report a case of hemangiopericytoma arising from the greater omentum with pelvic metastasis. The case was a 45 year old male patient admitted to our hospital with abdominal pain and swelling. Abdominal ultrasound and computer tomography detected a huge heterogeneously enhancing predominantly solid central abdominal mass with cystic changes. Laparotomy and excision of huge freely mobile highly vascularized mass arising from the greater omentum and multiple deposits on the anterior wall of the rectum was performed. Histological findings confirmed a diagnosis of hemangiopericytoma of the greater omentum with secondary deposits in the pelvis.