title: [A case of heterochrony and ectopic recurrence of a gastric signet ring cell carcinoma following partial gastrectomy].
abstract: A 53-year-old woman was referred to our hospital with a round, discolored lesion measuring 4mm in diameter that was identified as a minute gastric signet ring cell carcinoma. According to the Japanese classification of gastric carcinoma, it was graded as type 0-IIb. Seven years back, the woman had undergone pylorus-side gastrectomy for a small signet ring cell carcinoma, and the present lesion was assumed to result from heterochrony and ectopic recurrence. Endoscopic submucosal dissection was performed for the minute lesion. Clinicopathological findings revealed gastric mucosal cancer without invading lymph vessels or veins, similar to the previous lesion. We therefore report two very rare lesions in the same case. This case report demonstrates the importance of performing regular follow-up gastroduodenoscopy to detect recurrence in patients with these lesions.
authors.affiliation: Department of Pathology, JA Suzuka General Hospital.
authors.forename: Youichirou
authors.initials: Y
authors.lastname: Baba
authors.forename: Katsumi
authors.initials: K
authors.lastname: Mukai
authors.forename: Tomonori
authors.initials: T
authors.lastname: Saito
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Isono
authors.forename: Hiroki
authors.initials: H
authors.lastname: Tanaka
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Okano
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Sase
authors.forename: Shimpei
authors.initials: S
authors.lastname: Matsusaki
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Murata
authors.forename: Gen
authors.initials: G
authors.lastname: Watanabe
mesh_terms: D018279:Carcinoma, Signet Ring Cell / Q000473:pathology* / Q000601:surgery; D005260:Female; D005743:Gastrectomy / Q000379:methods*; D006801:Humans; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D013274:Stomach Neoplasms / Q000473:pathology* / Q000601:surgery