十二指肠球部从幽门开始长约5cm,粘膜皱襞呈纵向走行,止于上曲部环形的Kerckring皱襞.从第一环Kerckring皱襞开始直至十二指肠空肠曲部发生的溃疡统称球后溃疡.我院20年来经胃镜检出12例,现报告如下.1 临床资料十二指肠球后溃疡12例中,男11例,女1例.年龄17～62岁,平均年龄42.2岁.患者自出现上消化道症状至行胃镜检查时间,最短2年,最长22 Duodenal bulb from the beginning of the pylorus about 5cm, mucosal folds walked longitudinally, ending in the upper curvature of the ring Kerckring fold.From the first ring Kerckring folds until the duodenal jejunum occurred after the ulcer called the ball Ulcers in our hospital 20 years by endoscopy 12 cases are reported as follows.1 Clinical data 12 cases of duodenal ulcer in 12 cases, 11 males and 1 female, aged 17 to 62 years, mean age 42.2 years. Patients since the upper gastrointestinal symptoms to gastroscopy time, the shortest 2 years, the longest 22