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目的:探讨胃肠道间质瘤的CT表现,并与病理结果对照,旨在提高诊断的准确性。方法:回顾性分析经手术病理证实胃肠道间质瘤患者32例的CT影像及临床资料。结果:CT明确定位27例(84.4%);肿瘤形态呈类圆形或卵圆形21例(65.6%),不规则或分叶状11例(34.4%);CT平扫肿块主体呈软组织密度,密度均匀7例(21.9%),不均匀25例(78.1%);病灶中心有坏死、囊变出血19例(59.4%),点状钙化3例(9.4%)。增强扫描病灶呈中等或明显强化,强化程度不一,实质部分均匀强化7例(21.9%),不均匀强化25例(78.1%)。结论:CT能较好显示肿瘤的内部结构,明确肿瘤的范围,有助于该病的诊断,指导制定治疗方案,检出远处转移和评价治疗效果。
Objective: To investigate the CT findings of gastrointestinal stromal tumors (GISTs) and compare them with the pathological results to improve the diagnostic accuracy. Methods: The CT images and clinical data of 32 patients with gastrointestinal stromal tumors confirmed by surgery and pathology were retrospectively analyzed. Results: Twenty-one cases (84.4%) were clearly located by CT. The tumors were round or oval in 21 cases (65.6%) and irregular or lobulated in 11 cases (34.4%). The masses of CT scan showed soft tissue density (21.9%) with uniform density and 25 cases (78.1%) with non-uniform density. There were necrosis in the center of the lesion, cystic hemorrhage in 19 cases (59.4%) and punctate calcification in 3 cases (9.4%). The enhancement of the lesion showed moderate or obvious enhancement, with varying degrees of enhancement. The enhancement was uniform in 7 cases (21.9%) and non-uniform enhancement in 25 cases (78.1%). Conclusion: CT can better display the internal structure of the tumor, clear the scope of the tumor, contribute to the diagnosis of the disease, guide the development of treatment options, detect distant metastasis and evaluate the therapeutic effect.