胃肠道间质瘤的CT分析

目的：探讨CT对胃肠道间质瘤的诊断价值。材料和方法：回顾性分析经手术病理证实的14例胃肠道间质瘤的CT资料。结果：14例胃肠道间质瘤中7例良性，4例潜在恶性，2例恶性，1例未定性；2例发生肝转移，1例合并结肠腺癌。1例位于食管，8例位于胃，3例位于小肠，2例位于结肠。14例胃肠道间质瘤最大径1~15cm不等。4例形态不规则，10例为规则的圆形或类圆形。1例混合性生长，境界不清，2例腔内生长，11例腔外生长。肿瘤密度不均匀，轻~重度强化，2例见钙化。结论：CT是胃肠道间质瘤术前诊断及判断其生物学行为的主要工具。

CT analysis of gastrointestinal stromal tumor

Objective: To investigate the value of CT in the diagnosis of gastrointestinal stromal tumor(GIST). Methods: 14 cases with GISTs which have been proved by postsurgical pathology were retrospectively analyzed. Results: 7 of the 13 GISTs were benign, 4 were potentially malignant, 2 was malignant, 1 was not sure to be benign or malignant. 1 of the 14 GISTs was from the esophagus, 8 were from the stomach, 3 were from the jejunum and ileum, 2 were from the colon. The tumors diameter were range 1 to 15cm. The tumors were round, oval or irregular in shape. 11 of the 14 GISTs were exophytic, 2 were endophytic, 1 was exo- and endophytic. 13 GISTs were cystic-solid with inhomogenous attenuation. The solid potion of masses enhanced moderately to markedly after the contrast media administrated. Conclusion: CT is the main tool for preoperational diagnosis and definition of GIST's biological behavior.