title: [The "depressed adenoma" of the stomach].
abstract: Depressed adenoma of the stomach, whose gross appearance is similar to that of type IIc early gastric carcinoma, was detected in 40/357, or 11%, of gastric resection preparations. Depressed adenoma is primarily found in the two distal thirds and the lesser curvature of the stomach. It presents as a flat brownish depression and measures between 2 and 39 mm across (mean 13 mm). Histology typically reveals tubular adenoma with closely spaced atypical columnar epithelial cells of the intestinal type. Depressed adenoma probably arises from pre-existing depressed lesions (erosions, ulcer scars, atrophic zones) rather than from conventional protuberant adenoma. Depressed adenoma appears to show a greater tendency for malignant differentiation than do conventional adenomas.
authors.affiliation: Städtisches Krankenhaus München-Neuperlach, I. Medizinische Abteilung.
authors.forename: R
authors.initials: R
authors.lastname: Ottenjann
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005753:Gastric Mucosa / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011127:Polyps / Q000473:pathology*; D011230:Precancerous Conditions / Q000473:pathology*; D013274:Stomach Neoplasms / Q000473:pathology*
vernacular_title: Das eingesenkte Adenom ("Depressed Adenoma") des Magens.