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目的分析胃肠道间质瘤(GIST)的CT表现,提高对本病的诊断水平。方法回顾性分析经手术病理证实并有完整CT检查资料的GIST 19例。结果 19例CT特点:主要向腔外生长的黏膜下富血供肿瘤,很少发生肠梗阻,可有囊变、坏死、出血、钙化。增强后良性者多强化均匀,边界清楚,恶性者呈中度以上不均匀强化,可有邻近结构侵犯和远处转移。结论 GIST的CT表现具有一定特点,多层螺旋CT及其重建功能对病变定位、定性以及鉴别诊断有重要价值。
Objective To analyze the CT findings of gastrointestinal stromal tumors (GIST) and to improve the diagnosis of this disease. Methods Retrospective analysis of 19 cases of GIST confirmed by surgery and pathology with complete CT examination. Results 19 cases of CT features: mainly to the extraluminal blood vessels for submucosal blood supply, rarely intestinal obstruction, cystic degeneration, necrosis, bleeding, calcification. After the enhancement of benign and more uniform, clear boundary, malignant were moderately above uneven enhancement, there may be violations of neighboring structures and distant metastasis. Conclusion The CT findings of GIST have certain characteristics. The multi-slice spiral CT and its reconstruction function have important value in the localization, characterization and differential diagnosis of lesions.