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目的探讨胃肠道间质瘤的多层螺旋CT影像特征及诊断价值。方法回顾性分析经手术组织病理证实30例胃肠道间质瘤患者的CT影像资料。结果肿瘤位于胃部19例,小肠8例,大网膜及肠系膜3例;良性19例,潜在恶性2例,恶性9例;肿块多呈圆形或类圆形,黏膜下型8例,浆膜下型12例,肌壁间型7例,胃肠道外型3例;黏膜下肿瘤血液供应丰富,向腔外生长,多数密度不均匀,内部可发生囊变或坏死,少数见出血、钙化及气体影;肿瘤实质部分大多中等至明显强化,静脉期进一步强化。结论双期增强扫描可准确显示胃肠道间质瘤发病部位、形态、大小,对其诊断有重要价值。
Objective To investigate the characteristics and diagnostic value of multi-slice spiral CT in gastrointestinal stromal tumors. Methods The CT images of 30 patients with gastrointestinal stromal tumors confirmed by surgical histopathology were retrospectively analyzed. Results Tumor was located in 19 cases of stomach, small intestine in 8 cases, omentum and mesentery in 3 cases; benign in 19 cases, 2 cases of malignant, 9 cases of malignant; mostly round or round tumors, submucosal in 8 cases, Subretinal type in 12 cases, intramural type in 7 cases, gastrointestinal tract in 3 cases; submucosal tumor blood supply to the extraluminal growth, most of the uneven density, internal cystic or necrosis can occur, a small number of bleeding, calcification And gas shadow; most of the substantial part of the tumor to strengthen significantly, the venous phase to further strengthen. Conclusions Dual phase enhanced scan can accurately show the location, shape and size of gastrointestinal stromal tumors and is of great value in diagnosis.