title: The location and multiplicity of chronic duodenal ulcer (A study of 1320 patients in Iraq).
abstract: 1811 chronic duodenal ulcers were found amount 1320 patients. These ulcers were classified into four groups, Pyloric (105), Bulbar (953), Apical (723), and Post-Bulbar (30). In 68.3% of cases the ulcer was single and in 31.4% were multiple. 45.8% of ulcers were on the anterior wall, 26.4% on the posterior wall, 26.4% on the lesser curve side and 3.7% on the greater curve side of the duodenum.
mesh_terms: D002908:Chronic Disease; D004381:Duodenal Ulcer / Q000473:pathology*; D004386:Duodenum / Q000473:pathology; D006801:Humans; D007493:Iraq; D011708:Pylorus / Q000473:pathology; D013276:Stomach Ulcer / Q000473:pathology