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目的研究胃肠道间质瘤的影像学表现。方法回顾性分析我院收治的10例经手术病理免疫组化证实的胃肠道间质瘤患者的胃肠钡餐、CT及DSA影像资料。结果10例中男7例,女3例,年龄37～65岁。临床主要表现为上腹疼痛和消化道出血。行胃肠钡餐X线(GI)检查4例,CT检查5例,DSA检查3例。(1)GI示:2例胃体呈类圆形充盈缺损,粘膜撑开、展平,浅表溃疡形成,局部胃壁尚柔软;2例胃窦肿瘤呈不规则充盈缺损及龛影,粘膜破坏。(2)CT示:5例胃内及小肠肿瘤向腔内外生长,平扫均为等密度,增强呈中度或明显强化,边界清楚,发生于小肠的可见小肠推移。(3)DSA示:2例空肠、1例末端回肠肿瘤呈圆形染色灶,边界清楚,对比剂弥散延迟,并见粗大引流静脉。结论胃肠道间质瘤的影像学表现无特异性,局限性腔内外生长的软组织肿块提示该诊断,血管造影对小肠肿瘤的检出有帮助。
Objective To study the imaging features of gastrointestinal stromal tumors. Methods The gastrointestinal barium meal, CT and DSA images of 10 cases of gastrointestinal stromal tumors confirmed by pathological immunohistochemistry in our hospital were retrospectively analyzed. Results Among the 10 cases, 7 were male and 3 were female, aged 37-65 years old. The main clinical manifestations of abdominal pain and gastrointestinal bleeding. Gastrointestinal barium meal X-ray (GI) examination in 4 cases, CT examination in 5 cases, DSA examination in 3 cases. (1) GI showed: 2 cases of round body filling defect, mucosal distraction, flattening, superficial ulcer formation, local gastric wall is still soft; 2 cases of gastric antrum tumor showed irregular filling defect and shadow, mucosal destruction . (2) CT showed: 5 cases of intragastric and small intestine tumors grew inside and outside the cavity. The plain scan was of equal density, and the enhancement was moderate or markedly enhanced. The boundary was clear and it occurred in the visible small intestine of the small intestine. (3) DSA showed: 2 cases of jejunum and 1 case of distal ileal tumors were stained circularly with clear boundaries, contrast agent dispersion delayed, and see the draining vein. Conclusion The imaging findings of gastrointestinal stromal tumors are non-specific, and the soft tissue masses that grow inside and outside the limiting cavity suggest this diagnosis. Angiography is helpful for the detection of small intestine tumors.