CT诊断胃肠道间质瘤价值分析

目的探讨胃肠道间质瘤的CT诊断价值。方法回顾性分析49例经手术及病理证实的胃肠道间质瘤的CT表现。结果 49例GIST中,发生于胃28,小肠16例,大肠4例,网膜1例。良性21例,恶性28例。肿瘤生长方式有外生性生长和内外混合性生长,类圆形或椭圆形40例,不规则分叶状9例。良性肿瘤以小于5cm为主(20/21),恶性肿瘤多超过或等于5cm(28/28)。良性肿瘤以均匀强化为主(17/21),恶性肿瘤以不均匀强化为主(22/28)。结论 CT对胃肠道间质瘤定位、定性诊断及病情判断和指导临床治疗有一定的临床价值。

Value of CT in the Diagnosis of Gastrointestinal Stromal Tumors

Objective To investigate the diagnostic value of CT in gastrointestinal stromal tumors（GIST）. Methods The CT findings of 49 cases with GIST confirmed by surgery and pathology were analyzed retrospectively. Results Of the 49 cases, 28 lesions were located in stomach, 16 in small bowel, 4 in rectum, and 1 in retina. There were 21 benign cases and 28 malignant cases. The growth pattern of GIST included extracavity and mixed, with round, oval （n=40）, irregular or lobular（n=9）. Most of the benign GISTs were less than 5.0 cm in diameter （20/21） and showed homogenous enhancement （17/21）, while malignant ones were not less than 5.0 cm in diameter （28/28） most of which showed inhomogenous enhancement （22/28）. Conclusion CT is helpful in the locational, qualitative diagnosis, judging conditions and clinical treatment of GIST.