以下为句子列表：
英文: Upper gastrointestinal series and computed tomography of the abdomen also confirmed a tumor within the duodenum.
中文: 上肠胃道摄影及腹部电脑断层摄影均显示此肿瘤位于十二指肠。
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英文: Upper gastrointestinal series revealed several characteristic findings: dilatation of the stomach and the first and second portions of the duodenum, abrupt vertical compression of the third portion of the duodenum, churning without orderly peristalsis or
中文: 做上消化道摄影检查，两列皆可见胃及十二指肠第一、二部分略显扩张，至第三部分则突然中断，显示有外在压迫痕迹，致钡剂流通受阻，同时有逆流的现象；但阻塞并非完全性，将病人变换姿势，受阻情形立见改善。
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英文: Upper gastrointestinal series with water-soluble contrast medium is the most sensitive diagnostic tool.
中文: 水溶性钡剂的上消化道摄影术是诊断此疾病最敏感的工具。
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