胃肠道平滑肌瘤和平滑肌肉瘤的CT表现

CT imaging of leiomyomas and leiomyosarcomas in the gastrointestinal tract

目的 :探讨CT在胃肠道平滑肌瘤和平滑肌肉瘤诊断中的应用价值。方法 :本文收集了 12例 (男 8例 ,女 4例 ,平均年龄 5 6 .1岁 )经手术病理证实的胃肠道平滑肌瘤 (5例 )和平滑肌肉瘤 (7例 )。 12例均作CT检查 ,其中 3例作了胃镜检查 ,6例作了胃肠道钡餐造影检查。结果 :胃是胃肠道平滑肌瘤和平滑肌肉瘤最好发部位 ,除直接浸润和远处转移提示为恶性外 ,肿瘤大、分叶状、不均匀强化及溃疡形成均提示平滑肌肉瘤可能性大。结论 :CT在胃肠道平滑肌瘤和平滑肌肉瘤的诊断与鉴别诊断中优于胃镜和胃肠道钡餐造影检查。

Objective:To evaluate the diagnostic value of CT efficacy in the gastrointestinal leiomyoma and leiomyosarcoma.Methods:12 cases (8 men,4 women,mean age 56.1 years)of gastrointestinal tract confirmed by pathology were examinated with CT(n=12),barium meal study (n=6)and gastroscopy (n=3). Results:The stomach is the commonest site of leiomyomas and leiomyosarcomas,In addition to the features of direct invasion and distant metastasis suggestinhg malignancy,the large size,lobulated contour,heterogeneous enhancement and ulceration are favoring the possibility of leiomyosarcoma.Conclusion:We found that in characterizing leiomyomas and leiomyosarcomas of the gastrointestinal tract CT,examination was significantly superior to the other two methods.CT features are useful in differentiating leiomyoma and leiomyosarcoma of the gastrointestinal tract.