title: Upper gastrointestinal bleeding from Merkel cell carcinoma.
abstract: Merkel cell carcinoma is a rare small cell carcinoma of the dermis with aggressive clinical features and frequent local recurrence. Intra-abdominal spread of the cancer has previously been noted primarily in the liver and retroperitoneal nodes. We report a patient with previously diagnosed Merkel cell carcinoma of the right buttock with metastases to the stomach and duodenum presenting with acute upper gastrointestinal bleeding.
authors.affiliation: Gastroenterology Service, Brooke Army Medical Center, San Antonio, Texas.
authors.forename: L I
authors.initials: LI
authors.lastname: Canales
authors.forename: A
authors.initials: A
authors.lastname: Parker
authors.forename: S
authors.initials: S
authors.lastname: Kadakia
mesh_terms: D000368:Aged; D002081:Buttocks; D015266:Carcinoma, Merkel Cell / Q000150:complications / Q000556:secondary*; D004379:Duodenal Neoplasms / Q000150:complications / Q000556:secondary*; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008297:Male; D012878:Skin Neoplasms / Q000473:pathology*; D013274:Stomach Neoplasms / Q000150:complications / Q000556:secondary*