title: [Case of Colon Metastasis from Early Gastric Cancer 4 Years after Laparoscopic Assisted Distal Gastrectomy].
abstract: A 69-year-old woman who underwent laparoscopic assisted distal gastrectomy for early gastric cancer(pathological T1bN1M0)in June 2011was admitted to the hospital because of abdominal pain in May 2015.A n abdominal CT scan showed ileus caused by a transverse colon tumor and ascending colon perforation.We performed emergency right hemicolectomy and diverting ileostomy.The postoperative pathological findings revealed poorly differentiated adenocarcinoma and signetring cell carcinoma similar to the gastric cancer resected 4 years ago.Immunohistochemical findings showed that the colon tumor was positive for CK7, but negative for CK20 and expressed a gastric mucin phenotype.From these findings, the colon tumor was diagnosed as a metastasis from early gastric cancer.Colon metastasis from early gastric cancer is rare and the diagnosis is difficult in some cases.We herein report this case and discuss the clinical and pathologic features of colon metastasis from gastric cancer.
authors.affiliation: Dept. of Gastrointestinal Surgery, Kanagawa Cancer Center.
authors.forename: Kosuke
authors.initials: K
authors.lastname: Ikeda
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Sato
authors.forename: Yukio
authors.initials: Y
authors.lastname: Maezawa
authors.forename: Kazuki
authors.initials: K
authors.lastname: Kano
authors.forename: Tetsuta
authors.initials: T
authors.lastname: Satoyoshi
authors.forename: Kenki
authors.initials: K
authors.lastname: Segami
authors.forename: Tetsushi
authors.initials: T
authors.lastname: Nakajima
authors.forename: Takashi
authors.initials: T
authors.lastname: Ogata
authors.forename: Haruhiko
authors.initials: H
authors.lastname: Cho
authors.forename: Takaki
authors.initials: T
authors.lastname: Yoshikawa
mesh_terms: D000230:Adenocarcinoma / Q000556:secondary* / Q000601:surgery; D000368:Aged; D003082:Colectomy; D044682:Colon, Ascending / Q000473:pathology* / Q000601:surgery; D003110:Colonic Neoplasms / Q000556:secondary* / Q000601:surgery; D017809:Fatal Outcome; D005260:Female; D005743:Gastrectomy; D006801:Humans; D010535:Laparoscopy; D013274:Stomach Neoplasms / Q000473:pathology* / Q000601:surgery; D013997:Time Factors