title: An autopsy case of Merkel cell carcinoma presenting aggressive intraabdominal metastasis and duodenal obstruction.
abstract: A 85-year-old Japanese woman was urgently admitted to our hospital complaining of vomiting 20 months after the initial diagnosis of Merkel cell carcinoma on the right eyelid. The patient died of a huge intra-abdominal mass with complete obstruction of the distal duodenum two months later. On autopsy, the mass measuring 18 x 12 x 5 cm in size was histologically diagnosed as metastatic Merkel cell carcinoma and directly invaded the stomach, pancreas, and distal duodenum.
authors.affiliation: Department of Internal Medicine, Kyushu Central Hospital.
authors.forename: Kazuoki
authors.initials: K
authors.lastname: Hizawa
authors.forename: Shuichi
authors.initials: S
authors.lastname: Kurihara
authors.forename: Mari
authors.initials: M
authors.lastname: Nakamori
authors.forename: Tsukane
authors.initials: T
authors.lastname: Nakahara
authors.forename: Takayuki
authors.initials: T
authors.lastname: Matsumoto
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Iida
mesh_terms: D000008:Abdominal Neoplasms / Q000556:secondary*; D000369:Aged, 80 and over; D015266:Carcinoma, Merkel Cell / Q000556:secondary*; D004379:Duodenal Neoplasms / Q000556:secondary; D004380:Duodenal Obstruction / Q000209:etiology*; D005260:Female; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology*; D008207:Lymphatic Metastasis; D010190:Pancreatic Neoplasms / Q000556:secondary; D012878:Skin Neoplasms / Q000473:pathology*; D013274:Stomach Neoplasms / Q000556:secondary