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Carbohydrate antigen 19‐9‐producing gastric carcinoma: A case report
Author(s) -
Huang PiTeh,
Lin LienFu
Publication year - 2021
Publication title -
advances in digestive medicine
Language(s) - English
Resource type - Journals
ISSN - 2351-9800
DOI - 10.1002/aid2.13200
Subject(s) - immunohistochemistry , medicine , tumor marker , cancer , gastroenterology , ca19 9 , carcinoembryonic antigen , antigen , gastric carcinoma , biopsy , pathology , pancreas , carcinoma , staining , pancreatic cancer , immunology
Carbohydrate antigen 19‐9 (CA 19‐9) is a tumor marker often elevated in pancreatic and hepatobiliary malignancies. CA 19‐9 has also been rarely reported to be a marker of digestive tract malignancies. We report a case of CA 19‐9‐producing gastric cancer with a markedly high serum CA 19‐9 level (52 862 U/mL). Immunohistochemical staining of the biopsy specimen was positive for CA 19‐9. Patient received palliative chemotherapy but expired due to disease progression. Elevated CA 19‐9 in gastric cancer is relatively rare and is correlated with poor prognosis.

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