胃间质瘤的多层螺旋CT表现及其诊断价值

Multi slice spiral CT findings and diagnostic value of gastric stromal tumor

目的:通过分析胃间质瘤(GST)的多层螺旋CT影像表现,探讨胃间质瘤的CT诊断价值。方法:回顾性分析35例经病理证实的胃间质瘤的CT表现,包括病变部位、生长方式、形态、大小、密度及强化程度、有无淋巴结及其他器官转移。结果:35例病灶均为单发,位于胃体17例、贲门胃底14例、胃窦4例。肿瘤内部密度多不均匀,伴有不同程度的坏死囊变,钙化4例。瘤体最大者14cm×10cm×9 cm。肿块位于胃腔内13例,突向腔外者13例,同时向胃腔内外生长者9例。17例增强扫描肿瘤呈不均匀强化。21例病灶增强静脉期进一步强化。结论:GST的CT表现具有一定特征性,多层螺旋CT对胃间质瘤的定位及诊断具有重要价值。

Objective To investigate the diagnostic value of CT in the diagnosis of gastric stromal tumor （GST）. Methods The CT findings of 35 cases with gastric stromat tumor confirmed by pathology were retrospectively analyzed, including lesion location, growth pattern, shape, size, density and enhancenlent degree, lymph nodes and other organs. Results 35 cases were single, located in 17 cases of gastric body, 14 cases of gastric fundus, 4 cases of gastric antrum. The internal density of the tumor was not uniform〉 with different degrees of necrosis and cystic change, calcification in 4 cases.Tthe largest 14cm×10cm ＊9 cm. 13 cases were located in the stomach cavity, 13 cases were sudden to the outside of the cavity, and 9 cases of the gastric lumen were also grown. In 17 cases, the enhancement of the tumor was not uniform. 21 cases with enhanced venous phase were further strengthened. Cor l,,ision The CT expression of GST has some characteristic, and it has important value to the diagnosis of gastric stromal tumor by multi-slice spiral CT.