【摘要】 目的探讨胃肠道间质瘤(GIST)的血管造影表现,评价血管造影对该肿瘤的诊断价值。方法采用PUCK和DSA方法,对12例GIST患者术前1周行血管造影检查,分析病灶的部位、大小、形态及血管造影表现。结果肿瘤发生于胃区2例,空肠8例,回肠2例。良性者7例,恶性者5例。肿瘤供血动脉明显增粗者8例,静脉提前显影者3例。GIST的血管造影改变主要有两种类型:(1)肿瘤血管紊乱呈卷发状,部分血管边缘毛糙、模糊。(2)肿瘤血管呈抱球状,肿瘤染色均匀一致。结论血管造影检查对于GIST的定位、定性诊断有很大的帮助,可以明确肿瘤的大小、范围及部位,尤其是对于不明原因的黑便患者更有价值。更多还原

【Abstract】 Objective To investigate the angiographic feature and its diagnostic value in gastrointestinal stromal tumor (GIST). Methods Twelve patients with pathologically proved GIST underwent angiography using PUCK and DSA one week before operation. The origin, size, morphology and angiographic appearance of the lesion were retrospectively analyzed. Results It was found that two tumors originated from stomach, eight from jejunum, and two from ileum. Seven cases were benign but five malignant. Obviously thickened and enlarged feeding artery was detected in eight tumors, and early-developed vein was found in three. Two types of angiographic changes of GIST were observed: 1) twisted irregular neoplastic vessels with partially coarse and indistinct margin were found in four cases, which were all malignant; 2) ball-like neoplastic vessels with homogeneous stain in tumor were found in eight cases, seven of them were benign but one was malignant. Conclusion Angiography may be helpful in localization and diagnosis as well as defining the size of GIST, and especially in patients with melena of unknown origin.更多还原