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目的 :探讨肾盂癌的影像学表现以提高其诊断正确性。材料与方法 :搜集经手术病理证实的 1 2例肾盂癌资料 ,其中 1 1例作IVP ,3例作RP ,2例作MRI,1 2例分别作CT及US检查。着重分析尿路造影与CT表现。结果 :IVP和RP显示肾盂、肾盏内不规则形充盈缺损 ,肾盏积水。当肿瘤较小时 ,CT平扫见肾盂、肾盏内软组织肿块 ;当肿瘤侵犯肾实质时 ,显示肾盂及肾实质内软组织肿块 ,病灶密度不均匀 ,可有坏死液化。增强扫描病灶呈轻中度强化。9例IVP及 3例RP显示病灶 ,1 1例CT及 2例MRI均显示病灶 ,1 2例作US者仅 6例显示病灶。结论 :IVP和CT是诊断肾盂癌的首选检查方法。当肿瘤侵犯肾实质或有远处转移时 ,CT和MRI明显优于IVP和RP。
Objective: To investigate the imaging manifestations of renal pelvic cancer so as to improve its diagnostic accuracy. Materials and Methods: We collected 12 cases of renal pelvic carcinoma confirmed by surgery and pathology. Among them, 11 were IVP, 3 were RP, 2 were MRI, and 12 were CT and US respectively. Analysis of urography and CT performance. Results: IVP and RP showed renal pelvis, calyceal irregular filling filling defect, calyceal hydrops. When the tumor is small, CT scan to see the renal pelvis, renal calyx soft tissue mass; when the tumor invading the renal parenchyma, the renal pelvis and renal parenchyma mass within the soft tissue mass, the lesion density uneven, may have necrosis liquefaction. Enhanced scan lesions showed mild to moderate enhancement. Nine cases of IVP and three cases of RP showed lesions, 11 cases of CT and 2 cases of MRI showed lesions, 12 cases of US only 6 cases showed lesions. Conclusion: IVP and CT are the first choice for the diagnosis of renal pelvic cancer. CT and MRI are significantly superior to IVP and RP when tumors invade the renal parenchyma or have distant metastases.