title: A patient with gastric adenosquamous carcinoma with intraperitoneal free cancer cells who remained recurrence-free with postoperative S-1 chemotherapy.
abstract: The case of a patient with gastric adenosquamous carcinoma with positive cancer cells on intraperitoneal washing cytology (CY1) who achieved a long recurrence-free survival is herein reported. A 74-year-old man was found to have adenosquamous carcinoma of the stomach. Partial gastrectomy was performed, and a pathological examination confirmed a diagnosis of adenosquamous carcinoma with invasion into the serosa and lymph node metastasis. S-1 monotherapy was administered because a cytologic examination revealed that the patient's peritoneal washings were positive for cancer cells. The patient remains alive with no recurrence two years and 10 months after undergoing surgery. Postoperative chemotherapy with S-1 monotherapy is effective for treating adenosquamous carcinoma of the stomach with CY1 and might contribute to long-term survival.
authors.affiliation: Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Japan.
authors.forename: Masahide
authors.initials: M
authors.lastname: Ebi
authors.forename: Takaya
authors.initials: T
authors.lastname: Shimura
authors.forename: Seiji
authors.initials: S
authors.lastname: Yamada
authors.forename: Yoshikazu
authors.initials: Y
authors.lastname: Hirata
authors.forename: Hironobu
authors.initials: H
authors.lastname: Tsukamoto
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Okamoto
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Mizoshita
authors.forename: Satoshi
authors.initials: S
authors.lastname: Tanida
authors.forename: Hiromi
authors.initials: H
authors.lastname: Kataoka
authors.forename: Takeshi
authors.initials: T
authors.lastname: Kamiya
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Inagaki
authors.forename: Takashi
authors.initials: T
authors.lastname: Joh
mesh_terms: D000368:Aged; D000970:Antineoplastic Agents / Q000627:therapeutic use*; D001202:Ascitic Fluid / Q000473:pathology; D018196:Carcinoma, Adenosquamous / Q000188:drug therapy* / Q000473:pathology / Q000601:surgery*; D003131:Combined Modality Therapy; D004338:Drug Combinations; D005743:Gastrectomy; D006801:Humans; D008297:Male; D010094:Oxonic Acid / Q000627:therapeutic use*; D013274:Stomach Neoplasms / Q000188:drug therapy* / Q000473:pathology / Q000601:surgery*; D005641:Tegafur / Q000627:therapeutic use*
chemical_list: D000970:Antineoplastic Agents; D004338:Drug Combinations; C079198:S 1 (combination); D005641:Tegafur; D010094:Oxonic Acid