摘要: Abstract Three thousand eight hundred consecutive barium meal examinations performed in the X-ray Department of University Hospital West Indies are analysed. A high percentage cases with gastric ulcers were found to have concomitant duodenal ulcers. The relationship between ulcer and is discussed evidence from present series literature suggests that secondary these cases. Two theories cause ulcer, (a) retention theory (b) reflux theory, especially relation ulcers, reviewed. appears be most acceptable, on basis this classified into primary (concomitant) or pyloric channel disease (pyloric hypertrophic stenosis). incidence Jam...