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  • Title: [Mucohistochemical studies of CEA producing and non-producing stomach cancers].
    Author: Iguchi K, Tanaka T, Yamagishi H, Inaba S, Fujimori C, Kurioka H, Kobayashi M, Hashimoto I.
    Journal: Gan No Rinsho; 1983 Aug; 29(9):971-80. PubMed ID: 6194317.
    Abstract:
    In this report, 141 patients with gastric cancer were studied histochemically. Tissue CEA was stained by the CEA-PAP method and the gastric cancer was classified into CEA-producing (96 cases, 68.1%) and CEA non-producing gastric cancer (45 cases, 31.9%). Histologically, CEA-producing gastric cancer was well differentiated adenocarcinoma and CEA non-producing gastric cancer was chiefly undifferentiated carcinoma. PAS, pH 2.5 Alcian-blue, High Iron Diamine, Alkaline-PAS, and Concanavalin A paradoxical stain were applied to specimens from each type of gastric carcinoma. Mucosubstances of CEA-producing gastric cancer were positive for A-B, HID, AL-PAS and CPS III-1; those of CEA non-producing gastric cancer were positive for PAS and CPS III-s, but negative for A-B, HID and A1-PAS. These results suggest that CEA-producing gastric cancer arises from intestinal metaplasia of gastric mucosa and that CEA non-producing gastric cancer arises from the gastric mucosa itself.
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