小肠问质瘤伴溃疡形成的CT诊断

摘要

Objective To investigate the specific CT findings of ulcerated small-bowel stromal tumors. Methods S patients with ulcerated small-bowel stromal tumors admitted into our hospital were confirmed by surgery, pathology and immunohistochemisty during October 2009 and March 2011, and the CT findings were retrospectively analyzed. Results The tumors were located on duodenum in 2 patients, 2 on jejunum, 1 on ileum. The max diameter of the tumors ranged from 7.9 ~9.3 cm, with a mean size of 8.6 cm. CT studies of ail the tumors showed exogenous mass with inhomogenous attenuation. The gas-liquid level, which was made of gas and contrast agent, was found because of communication between intra-tumorous ulcer and lumen , and it was mistaken for the real intestinal tract. Conclusion The CT features of ulcerated small-bowel stromal tumors are the false-intestinal signs and the eccentric mas of adjacent intestinal tract. Combined with age and symptoms, the disease may be diagnosed.%目的 探讨小肠间质瘤伴溃疡形成的CT表现及特征.方法 回顾性分析我院2009年10月～2011年3月收治的5例经手术病理及免疫组织化学证实的小肠间质瘤伴溃疡形成的CT影像资料.结果 肿瘤位于十二指肠2例,空肠2例,回肠1例.病灶最大径7.9～9.3 cm,平均8.6 cm.CT表现为肠道外生性肿块,病灶密度不均匀,均伴有溃疡并与肠腔贯通,其内可见气体及对比剂形成的气液平.结论 小肠肠管偏心性肿块及假肠腔是小肠间质瘤伴溃疡形成的CT影像特点,结合患者年龄及临床症状,即可明确诊断.