title: Intramucosal Signet Ring Cell Gastric Cancer Diagnosed 15 Months after the Initial Endoscopic Examination.
abstract: The size and shape of intramucosal signet ring gastric cancer in this case remained endoscopically unchanged for 15 months. Laparoscopy-assisted distal gastrectomy was performed, and immunohistochemical analysis revealed Ki-67 and p53 mutations to be negative in this case. Signet ring gastric cancer has long been thought to confer a worse prognosis than other forms of gastric cancer; however, our case did not progress to advanced gastric cancer for 15 months.
authors.affiliation: Department of Gastroenterology, Shinmatsudakai Atago Hospital, Kochi 780-0051, Japan ; Department of Endoscopic Diagnostics and Therapeutics, Kochi Medical School, Kochi University, Nankoku 783-8505, Japan.
authors.forename: Keisuke
authors.initials: K
authors.lastname: Taniuchi
authors.affiliation: Department of Gastroenterology, Shinmatsudakai Atago Hospital, Kochi 780-0051, Japan.
authors.forename: Koji
authors.initials: K
authors.lastname: Ookawauchi
authors.affiliation: Department of Gastroenterological Surgery, Kochi Health Sciences Center, Kochi 781-0111, Japan.
authors.forename: Kento
authors.initials: K
authors.lastname: Kumon
authors.affiliation: Department of Gastroenterological Surgery, Kochi Health Sciences Center, Kochi 781-0111, Japan.
authors.forename: Tatsuaki
authors.initials: T
authors.lastname: Sumiyoshi
authors.affiliation: Department of Diagnostic Pathology, Kochi Health Sciences Center, Kochi 781-0111, Japan.
authors.forename: Jun
authors.initials: J
authors.lastname: Iwata
authors.affiliation: Department of Pathology, Kochi Medical School, Kochi University, Nankoku 783-8505, Japan.
authors.forename: Mutsuo
authors.initials: M
authors.lastname: Furihata
authors.affiliation: Department of Gastroenterological Surgery, Kochi Health Sciences Center, Kochi 781-0111, Japan.
authors.forename: Toshio
authors.initials: T
authors.lastname: Nakamura
authors.affiliation: Department of Gastroenterology, Shinmatsudakai Atago Hospital, Kochi 780-0051, Japan.
authors.forename: Junko
authors.initials: J
authors.lastname: Uchiumi