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目的探讨腔外型胃平滑肌瘤的CT表现。方法对经手术病理证实的30例腔外型胃平滑肌瘤行CT平扫及增强扫描,分析其特点。结果30例腔外型胃平滑肌瘤,病变位于胃体部27例,胃窦部3例,CT平扫表现为与胃壁关系密切的圆形或椭圆形软组织肿块,边缘光滑,病变与胃壁呈钝角或锐角,19例密度均匀,11例内见低密度灶,增强扫描14例无强化,16例轻至中度强化,右侧卧位扫描肿块出现牵拉征14例,抱球征12例。结论CT在显示腔外型胃平滑肌瘤较其他检查方法有明显优势,对病变的正确诊断有重大意义。
Objective To investigate CT appearance of extraluminal gastric leiomyomata. Methods Thirty cases of extracavitary gastric leiomyoma confirmed by surgery and pathology were examined by CT scan and enhanced scan, and their characteristics were analyzed. Results Thirty cases of extraluminal gastric leiomyoma were located in 27 cases of gastric body and 3 cases of gastric antrum. CT scan showed a round or oval soft tissue mass closely related to the stomach wall with a smooth margin, Obtuse angle or acute angle, 19 cases of uniform density, 11 cases of low-density lesions, enhancement scan in 14 cases without enhancement, 16 cases of mild to moderate enhancement, the right lateral decubitus scan showed traction in 14 cases, hold ball sign in 12 cases . Conclusion CT showed obvious advantages over other methods in detecting extraluminal gastric leiomyomata, which is of great significance in the correct diagnosis of lesions.