title: [Principles of current classification of duodenitis].
abstract: The paper considers the principles of classification of chronic duodenitis. The current classification of chronic duodenitis may be divided into three parts: endoscopic, histological, and etiological. The characterizing terms of the endoscopic part are as follows: erythema, hemorrhages, atrophy, erosions, follicles. The endoscopic localization of duodenitis is as follows: proximal and distal portions (panduodenitis, including bulbitis in the proximal portion and postbulbitis in the distal portion, palpilitis). The nonspecific terms of the histological part are as follows: activity, inflammation, and atrophy. Its specific terms are: ventricular metaplasia, ventricular heterotopia, Helicobacter pylori, granulomas, lymphatic follicles, eosinophilic infiltration, lymphocytic infiltration. The following morphological categories of duodenitis are: nonatrophic, nodular, granulomatous, eosinophilic, and lymphocytic. The morphological localization of duodenitis is as follows: proximal and distal portions (panduodenitis, including bulbitis in the proximal portion and postbulbitis in the distal portion). The following degrees of its severity are: none changes, mild, moderate, and sever. The types (etiological factors) of duodenitis are as follows: acid-associated, drug-dependent, toxic (eliminating), and isolated nonspecific (idiopathic). Its special forms are: H. pylori-induced, granulomatous (Crohn's disease, sarcoidosis), nodal (Crohn's disease, sarcoidosis, acid-associated diseases), eosinophilic (unspecified allergens), lymphocytic (gluten-induced).
authors.forename: M R
authors.initials: MR
authors.lastname: Konorev
authors.forename: A M
authors.initials: AM
authors.lastname: Litviakov
authors.forename: M E
authors.initials: ME
authors.lastname: Matveenko
authors.forename: Iu V
authors.initials: IuV
authors.lastname: Krylov
authors.forename: A V
authors.initials: AV
authors.lastname: Kovalev
authors.forename: A A
authors.initials: AA
authors.lastname: Riashchikov
mesh_terms: D001284:Atrophy; D003937:Diagnosis, Differential; D004382:Duodenitis / Q000139:chemically induced / Q000145:classification* / Q000175:diagnosis / Q000209:etiology* / Q000382:microbiology / Q000473:pathology; D004384:Duodenoscopy; D004804:Eosinophils; D005744:Gastric Acid; D005983:Glutens / Q000009:adverse effects; D006099:Granuloma; D016481:Helicobacter Infections / Q000175:diagnosis / Q000382:microbiology; D016480:Helicobacter pylori; D006801:Humans; D008214:Lymphocytes; D012307:Risk Factors; D012720:Severity of Illness Index
chemical_list: D005983:Glutens