title: Primary liposarcoma of the duodenum: a first case presentation.
abstract: A 55-year-old man suffering from melena was admitted to our hospital. A blood test showed severe anemia. Contrast-enhanced computed tomography (CT) revealed a huge lesion in the duodenum and dilatation of the common bile duct. Upper gastrointestinal endoscopy also identified hemorrhaging from the tumor in the duodenum. Due to the low density of the tumor mass, we performed emergency pylorus-preserving pancreaticoduodenectomy. Histology revealed an area of well-differentiated liposarcoma as well as an area of high-grade spindle cells and pleomorphic sarcoma without obvious differentiation. The final pathological diagnosis was dedifferentiated liposarcoma. This is the first case report of primary liposarcoma of the duodenum.
authors: Department of Gastroenterological Surgery, Kochi Health Sciences Center, Japan.
authors: Takehiro
authors: T
authors: Okabayashi
authors: Yasuo
authors: Y
authors: Shima
authors: Jun
authors: J
authors: Iwata
authors: Tatsuaki
authors: T
authors: Sumiyoshi
authors: Akihito
authors: A
authors: Kozuki
authors: Teppei
authors: T
authors: Tokumaru
authors: Yasuhiro
authors: Y
authors: Hata
authors: Yoshihiro
authors: Y
authors: Noda
authors: Takeshi
authors: T
authors: Inagaki
authors: Saori
authors: S
authors: Morishita
authors: Masanori
authors: M
authors: Morita
mesh_terms: D004379:Duodenal Neoplasms / Q000175:diagnosis* / Q000601:surgery*; D006801:Humans; D008080:Liposarcoma / Q000175:diagnosis* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D016577:Pancreaticoduodenectomy / Q000379:methods