title: Spindle cell nodule and peptic ulcer arising in a fully developed gastric wall in a mature cystic teratoma.
abstract: We describe an ovarian mature cystic teratoma that contained a peptic ulcer arising from a fully developed gastric wall. Beneath the ulcer was a spindle cell nodule resembling a sarcoma. To our knowledge, neither peptic ulcer nor peptic ulcer associated with a sarcomalike spindle cell proliferation has been reported in ovarian teratoma, although there have been previous reports of full-thickness gastrointestinal wall development. Another interesting aspect of this case was peritoneal melanosis associated with brown-black pigmentation of the ovarian teratoma.
authors.affiliation: Department of Pathology, University of Texas M.D. Anderson Cancer Center, Houston 77030.
authors.forename: A A
authors.initials: AA
authors.lastname: Sahin
authors.forename: J Y
authors.initials: JY
authors.lastname: Ro
authors.forename: J
authors.initials: J
authors.lastname: Chen
authors.forename: A G
authors.initials: AG
authors.lastname: Ayala
mesh_terms: D000328:Adult; D003884:Dermoid Cyst / Q000150:complications* / Q000473:pathology; D005260:Female; D006801:Humans; D009378:Neoplasms, Multiple Primary; D010051:Ovarian Neoplasms / Q000150:complications* / Q000473:pathology; D010437:Peptic Ulcer / Q000150:complications*; D012509:Sarcoma / Q000150:complications* / Q000473:pathology; D013274:Stomach Neoplasms / Q000150:complications* / Q000473:pathology