title: Extensive GI tract involvement of Ewing's sarcoma/peripheral primitive neuroectodermal tumor in an octogenarian.
authors.affiliation: Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan.
authors.forename: Pei-Ying
authors.initials: PY
authors.lastname: Lin
authors.forename: Jin-Yuan
authors.initials: JY
authors.lastname: Shih
authors.forename: Mu-Zon
authors.initials: MZ
authors.lastname: Wu
authors.forename: Yu-Ting
authors.initials: YT
authors.lastname: Chang
authors.forename: Pan-Chyr
authors.initials: PC
authors.lastname: Yang
mesh_terms: D000369:Aged, 80 and over; D001707:Biopsy, Needle; D018450:Disease Progression; D016099:Endoscopy, Gastrointestinal; D017809:Fatal Outcome; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis / Q000628:therapy; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D009361:Neoplasm Invasiveness / Q000473:pathology*; D018241:Neuroectodermal Tumors, Primitive, Peripheral / Q000175:diagnosis / Q000473:pathology*; D035583:Rare Diseases; D012512:Sarcoma, Ewing / Q000175:diagnosis / Q000473:pathology*; D014057:Tomography, X-Ray Computed