Abstract
Angiosarcoma, one of the least common sarcomas, occurs most commonly in the skin and soft tissues, and postirradiation angiosarcoma of the greater omentum is extremely rare. Only one reported case of postirradiation angiosarcoma involved the greater omentum. We describe the case of 74-year-old female with a history of cervical cancer treated with abdominal irradiation 5years before. On admission, she had nausea, vomiting anorexia, and fatigue. She underwent an abdominal computed tomography scan that revealed an irregularly shaped tumor bounded by transverse colon. The patient died on the 34th hospital day. Autopsy revealed that the tumor was composed of anastomosing irregular vascular channels of variable calibers, involving the adipose tissue of the omentum. Histological studies suggested angiosarcoma. The definitive diagnosis was postirradiation angiosarcoma of the greater omentum, which is an extremely rare condition with an overall dismal prognosis.
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