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  • Title: Ectopic gastric mucosa and pancreatic ducts in the rectum.
    Author: Yamagishi H, Fukui H, Tomita S, Ichikawa K, Imura J, Ishizuka M, Kubota K, Fujimori T.
    Journal: Intern Med; 2011; 50(15):1587-9. PubMed ID: 21804286.
    Abstract:
    A 68-year-old woman with fecal occult blood was referred to Dokkyo Medical School Hospital. Colonoscopy demonstrated a flat lesion in the rectum, and endoscopic mucosal resection of the lesion was performed. Histologic examination revealed that it contained ectopic gastric mucosa, which had a gastric foveolar and glandular mucinous phenotype, as demonstrated by immunohistochemistry. Moreover, the lesion also contained CA19-9- and CK7-positive pancreatic duct-like components in the submucosal layer. The present case is the first report to describe ectopic gastric mucosa and pancreatic ducts concurrently arising in the rectum.
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