十二指肠降部是十二指肠的第2部，长约7—5cm，由十二指肠上曲沿右肾内侧缘下降，至第3腰椎水平，弯向左侧，转折处为十二指肠下曲。
File 关键词】 十二指肠降部 ； 壶腹周围癌 ； [gap=907]Key words] descending part of duodenum, peri-ampullaris carcinoma, CT, X-ray
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将胃肠减压管下拉到十二指肠降部，鼻饲营养管末端置于空肠中。
The gastrointestinal decompression tube was pulled deep into the descending part of the duodenum, and the end of the nasal feeding tube was put in the jejunum.
结果13例中胃穿孔5例，十二指肠球部穿孔7例，外伤性十二指肠降部撕裂伤1例。
Results in all 13 cases, gastric perforation occurred in 5 cases, duodenal perforation in 7, and traumatic duodenal avulsion in 1.
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