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目的 :探讨胃肠道平滑肌肉瘤的X线和CT表现 ,以提高对该病的诊断能力。方法 :回顾分析经手术病理证实的 2 0例胃肠道平滑肌肉瘤的X线表现及其中 11例胃平滑肌肉瘤的CT表现。结果 :均为单发病例 ,X线片上腔内型 4例 ,表现为圆形、半圆形充盈缺损或软组织肿块 ,肿瘤中心出现不规则的龛影。腔外型 6例 ,为胃肠轮廓外压性改变及较大龛影或肠腔与肿瘤之间隧道样改变 ,腔内外型 10例 ,兼有上述 2型表现。 11例胃平滑肌肉瘤CT上表现为直径 6～2 0cm分叶状肿块 ,密度不均匀且有不均匀强化 ,有邻近器官侵犯。结论 :胃肠造影检查和CT扫描密切结合 ,对提高胃肠道平滑肌肉瘤的诊断和鉴别诊断很有帮助
Objective: To investigate the X-ray and CT findings of gastrointestinal leiomyosarcoma to improve the diagnostic ability of the disease. Methods : The X-ray findings of 20 cases of gastrointestinal leiomyosarcoma confirmed by pathology were retrospectively analyzed and the CT appearances of 11 cases of gastric leiomyosarcoma were retrospectively analyzed. RESULTS: All cases were single-onset cases with X-rays with intraluminal 4 cases. The lesions were round or semicircular filling defects or soft tissue lumps. Irregular ridges appeared in the center of the tumor. 6 cases of extraluminal type were gastrointestinal contour external pressure changes and larger ridge shadows or tunnel-like changes between the intestine and tumor, 10 cases of intraluminal and external cavities, combined with the above type 2 performance. Eleven cases of gastric leiomyosarcoma showed a lobular mass with a diameter of 6 to 20 cm on CT. The density was uneven and unevenly enhanced, with adjacent organs invaded. Conclusion: The combination of gastrointestinal angiography and CT scan is very helpful for the diagnosis and differential diagnosis of gastrointestinal leiomyosarcoma