title: A squamous metaplasia in a gastric ulcer scar of the antrum.
abstract: An 81-year-old man presented with epigastric pain and weight loss for one month. He had a past history of pulmonary tuberculosis, 10 years ago. We performed a gastroscopy, which showed a linear depressed whitish gastric ulcer scar (0.8 cm in length) in the posterior wall of the prepyloric antrum. The result of biopsy was reported as squamous epithelium. Immunohistochemical staining using an antibody to high molecular weight cytokeratin (HMC) revealed positive staining in the squamous epithelium. Two years later, the lesion was followed up. The lesion remained at same site endoscopically, but no squamous epithelium could be seen microscopically.
authors.affiliation: Department of Internal Medicine Uijeongbu St. Mary's Hospital, 65-1 Geumo-dong, Uijeongbu 480-717, Korea.
authors.forename: Young-Seok
authors.initials: YS
authors.lastname: Cho
authors.forename: Jin-Soo
authors.initials: JS
authors.lastname: Kim
authors.forename: Hyung-Keun
authors.initials: HK
authors.lastname: Kim
authors.forename: Jeong-Seon
authors.initials: JS
authors.lastname: Ji
authors.forename: Byung-Wook
authors.initials: BW
authors.lastname: Kim
authors.forename: Hiun-Suk
authors.initials: HS
authors.lastname: Chae
authors.forename: Sok-Won
authors.initials: SW
authors.lastname: Han
authors.forename: Kyu-Yong
authors.initials: KY
authors.lastname: Choi
authors.forename: In-Sik
authors.initials: IS
authors.lastname: Chung
mesh_terms: D015746:Abdominal Pain; D000369:Aged, 80 and over; D001706:Biopsy; D004848:Epithelium / Q000378:metabolism; D006801:Humans; D007150:Immunohistochemistry / Q000379:methods; D007633:Keratins / Q000378:metabolism; D008297:Male; D008679:Metaplasia / Q000175:diagnosis*; D008970:Molecular Weight; D013276:Stomach Ulcer / Q000473:pathology*; D016896:Treatment Outcome; D014456:Ulcer / Q000473:pathology*
chemical_list: D007633:Keratins