Primary @entity5 of the small intestine are rare, comprising less than 2% of all @entity1820 . An 85-year-old @entity1 was admitted with fever of 40   C and marked @entity1661 . Her medical history was unremarkable, but blood examination showed elevated inflammatory markers. Abdominal computed tomography showed a @entity5 with central @entity39 , extending from the epigastrium to the pelvic cavity. @entity674 of the small intestine communicating with the gastrointestinal tract or with superimposed @entity281 was suspected. Because no improvement occurred in response to antibiotics, surgery was performed. Laparotomy revealed @entity548 adherent to the small intestine and occupying the peritoneal cavity. The @entity5 was a solid @entity5 weighing 3490 g, measuring 24 cm * 17.5 cm * 18 cm and showing marked @entity39 . Histologically, the @entity5 comprised spindle-shaped cells with anaplastic large nuclei. Immunohistochemical studies showed @entity5 cells positive for @entity2277 , @entity2279 , and factor VIII-related antigen, but negative for @entity2467 and @entity2280 . @entity5426 was diagnosed. Although no @entity260 occurred, the @entity1 experienced enlargement of multiple @entity3 in the abdominal cavity and died 42 d postoperatively. The prognosis of small @entity5426 is very poor, even after volume-reducing palliative surgery.

Giant XXXX of the small intestine showing severe sepsis.

@entity1 :: ('9606', 'Species') :: ['woman', 'patient'] @entity548 :: ('MESH:D006470', 'Disease') :: ['giant hemorrhagic tumor'] @entity39 :: ('MESH:D009336', 'Disease') :: ['necrosis'] @entity5 :: ('MESH:D009369', 'Disease') :: ['giant tumor', 'tumor', 'malignant tumors'] @entity1661 :: ('MESH:D000008', 'Disease') :: ['abdominal distension'] @entity5426 :: ('MESH:D006394', 'Disease') :: ['Angiosarcoma', 'intestinal angiosarcoma'] @entity2279 :: ('5175', 'Gene') :: ['CD31'] @entity260 :: ('MESH:D011183', 'Disease') :: ['postoperative complications'] @entity281 :: ('MESH:D007239', 'Disease') :: ['infection'] @entity2467 :: ('3815', 'Gene') :: ['c-kit'] @entity1820 :: ('MESH:D005770', 'Disease') :: ['gastrointestinal tumors'] @entity2277 :: ('7431', 'Gene') :: ['vimentin'] @entity3 :: ('MESH:D009362', 'Disease') :: ['metastatic tumors'] @entity674 :: ('MESH:D046152', 'Disease') :: ['Giant gastrointestinal stromal tumor'] @entity2280 :: ('947', 'Gene') :: ['CD34']
@entity5426 :: (MESH:D006394,Disease) :: ['primary angiosarcoma']
