title: [Duodenal polyps: epidemiology, clinical picture, diagnostics].
abstract: This cross-sectional comparative study included 120 patients (68 men and 52 women, mean age 58.3 +/- 14.5 yr) with duodenal polyps (DP) diagnosed by fibroesophagogastroduodenoscopy. Morphological study was conducted in 118 patients. Gastric metaplasia (GM) areas in polyp mucosa (PM) were identified by alcian blue/PAS reaction at pH 1.0 and 2.5. A total of 82859 patients were examined. Endoscopy revealed DP in 0.15% of them. The pH value below 6.5 was documented in duodenal bulb polyps in 85% of the patients having them and in 20% of those with polyps of other localization. Biliary pathology was documented in 80% of the patient with DP in major duodenal papilla and in 2.0% of those with DP of different localization. 66.7% of the patients did not complain of pain in the upper part of the gastrointestinal tract. Erosion of polyp mucosa occurred in 21.2% of the patients (92% of erosions in duodenal bulbs and 56.5% in hyperplastic DP with GM areas). H. pylori was identified in GM areas of bulb DP in 30.4% of the patients. Endoscopic study of 120 patients revealed the following localization of DP: bulbs - 83.4%, postbulbar region - 8.3%, major duodenal papilla - 8.3%. The following morphological types of DP (n = 118) were identified: hyperplastic DP - 49.2%, epithelial tumours - 16.1%, non-epithelial tumours - 1.7%, inflamed mucosal areas - 33.0%.
authors.forename: M R
authors.initials: MR
authors.lastname: Konorev
authors.forename: M E
authors.initials: ME
authors.lastname: Matveenko
authors.forename: E L
authors.initials: EL
authors.lastname: Katina
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003430:Cross-Sectional Studies; D003937:Diagnosis, Differential; D004386:Duodenum / Q000473:pathology*; D016099:Endoscopy, Gastrointestinal; D005260:Female; D006801:Humans; D006965:Hyperplasia / Q000473:pathology; D015994:Incidence; D007413:Intestinal Mucosa / Q000473:pathology; D007417:Intestinal Polyps / Q000175:diagnosis* / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D002094:Republic of Belarus / Q000453:epidemiology; D012189:Retrospective Studies; D055815:Young Adult