十二指肠平滑肌肉瘤的影像诊断(附9例报告)

Imaging Evaluation of Duodenal leimyosarcomas (A Report of 9 Cases)

目的 探讨原发性十二指肠平滑肌肉瘤的影像学特征。方法 本组９ 例，男４ 例，女５ 例，年龄３３ ～７２ 岁，平均５２－１１ 岁。９ 例经超声学（ＵＳ）和胃肠钡餐透视检查，其中４ 例经ＣＴ，２ 例经血管造影检查，９ 例患者均经手术及病理学证实。结果 十二指肠平滑肌肉瘤的主要影像学有：①肠腔狭窄；②十二指肠腔外肿块；③肠腔内充盈缺损；④肿瘤坏死和溃疡；⑤ＣＴ显示周围高密度带，伴中心部低密度区；⑥血管造影表现为十二指肠动脉供血，呈富血管性肿瘤表现。结论 Ｘ线钡餐检查和ＣＴ 扫描对十二指肠平滑肌肉瘤能作出比较准确的诊断，血管造影是一种补充性诊断方法。

Purpose To investigate the imaging features of duodenal leiomyosarcomas.Methods Four were male and five female.The age of the patients was from 33 to 72 years,with average of 52.11 years.The examination consisted of US,barium studies,CT(4cases) and angiography(2cases).The nine cases have been confirmed by operation and pathology.Results The main imaging manifestation of duodenal leiomyosarcomas were as follow ①Stenosis;②Extraduodenal masses;③Filling defect;④Tumor necrosis and ulceration;⑤CT features central zones of low density were surround by thickness of soft tissue density;⑥Angiographic manifestion is usually predominant blood supply.Conclusion X-ray barium studies and CT are shown to yield more accurate diagnostic methods.Angiography is a good complementary technique to correct diagnosis of leiomyosarcomas. [