摘要
目的:通过分析间叶来源的胃肿瘤影像表现,加深理解该肿瘤的CT诊断价值。方法:18例经手术病理证实的间叶来源的胃肿瘤均行钡餐造影检查,其中16例行螺旋CT平扫加增强检查,对其影像学表现进行分析。结果:18例间叶来源的胃肿瘤,包括胃间质瘤12例、胃平滑肌类肿瘤4例、胃血管球瘤1例、胃脂肪瘤1例。钡餐造影表现为充盈缺损16例,黏膜皱襞变平或消失15例,出现龛影6例;CT表现为腔内肿块16例,腔外2例,肿块最大10cm×7cm,最小直径1.5cm,肿块分叶10例、肿块内钙化5例,肿块中央见溃疡5例,液化坏死4例;CT值为负值的1例,增强后明显强化12例;2例肝脏转移,1例后腹腔淋巴结转移。结论:间叶来源胃肿瘤在钡餐造影中以共性表现为主,CT不仅显示率高,且有某些特征性表现,可提供定性及分期方面的信息。
Objective：To study and compare the value and manifestations of CT and barium meal examination in the diagnosis of mesenchymal tumors of the stomach. Methods：A group of 18 cases of mesenchymal tumors of the stomach,including gastrointestinal stromal tumor （GIST） （n= 6）, leiomyosarcoma （ n = 4）, glomus tumor （ n = 1 ） and lipoma （ n = 1 ） proved surgically and pathologically underwent barium meal examination,and 16 of the 18 cases underwent pre- and post- contrast enhanced CT scanning. All data were retrospectively analyzed, Results： Major signs of the tumors seen on barium meal examination included filling defect （16/18）, flattened or disappeared mucosa rugae （15/18） and niche （6/18）. CT scanning showed lobulated or irregular masses protruded into （11/18） or outside the lumen （4/20）,ulceration （5/18）,tiny flecks of calcification within the tumors （6/18）,negative CT value （1/18） and liquefied necrosis （4/18）. Marked homogenous enhancement （12/18） was seen in most tumors. Distant metastasis was noted in 3 cases （2 in liver, 1 in retroperitoneal lymph nodes）. Conclusion： Mesenchymal tumors of the stomach have some unspecific signs on barium meal examination. CT is able to show some characteristic signs of the lesions in addition to its high sensitivity and ability of offering staging information.
出处
《放射学实践》
2006年第6期573-576,共4页
Radiologic Practice
基金
上海市医学重点专科建设计划资助(05Ⅱ025)
