title: Gastric Cancer with a Very High Serum CA 19-9 Level.
abstract: Carbohydrate antigen 19-9 (CA 19-9) is a sensitive marker for pancreatic and hepatobiliary malignancies. The highest frequency of elevated serum CA 19-9 levels is found among patients with pancreatic cancer. CA 19-9 has recently been demonstrated to be a marker of digestive tract malignancies. We report the case of a patient with a gastric cancer and a very high serum CA 19-9 level. During laparotomy, a large mass was found in the antrum. A distal gastrectomy with D2 dissection of the lymph nodes was performed. Histological examination, including immunohistochemistry, revealed an adenocarcinoma of the stomach producing CA 19-9. To the best of our knowledge, no patient with an extremely high serum CA 19-9 level resulting from a gastric adenocarcinoma has been reported previously.
authors.affiliation: Department of Surgery Pippu Clinic, Pippu Town, Japan.
authors.forename: Kazuya
authors.initials: K
authors.lastname: Kato
authors.forename: Masahiko
authors.initials: M
authors.lastname: Taniguchi
authors.forename: Takako
authors.initials: T
authors.lastname: Kawakami
authors.forename: Atsushi
authors.initials: A
authors.lastname: Nagase
authors.forename: Minoru
authors.initials: M
authors.lastname: Matsuda
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Onodea
authors.forename: Hidenori
authors.initials: H
authors.lastname: Yamaguchi
authors.forename: Mineko
authors.initials: M
authors.lastname: Higuchi
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Furukawa