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目的讨论各种影像检查对肾盂癌的诊断价值。方法对经影像检查并得到病理证实的肾盂癌19例进行分析,比较各种检查方法对肾盂癌的检出率。结果静脉肾盂造影(IVP)显示肾盂、肾盏内不规则充盈缺损,肾盏积水。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,内有液化坏死。增强扫描病灶呈轻中度强化。19例患者中,术前IVP检查12例,9例IVP显示病灶,B超检查16例,10例显示病灶,CT扫描19例,18例显示病灶,MRI检查3例,3例显示病灶。结论影像学检查对肾盂癌的诊断有一定价值。IVP和CT是诊断肾盂癌的首选方法,B超可作为普查手段。当肿瘤侵犯肾实质或有远处转移时,CT和MRI明显优于IVP。
Objective To discuss the diagnostic value of various imaging examinations for renal pelvic cancer. Methods Nineteen cases of renal pelvic carcinoma confirmed by pathology and image examination were analyzed. The detection rate of renal pelvic cancer by various examination methods was compared. Results Intravenous pyelography (IVP) showed irregular filling of the renal pelvis and calyces and hydronephrosis. CT scan to see the renal pelvis, calyx soft tissue mass; when the tumor violations of the renal parenchyma, the renal pelvis and renal parenchyma mass showed soft tissue mass, the lesion density uneven, there liquefaction necrosis. Enhanced scan lesions showed mild to moderate enhancement. Of the 19 patients, 12 were preoperative IVP, 9 were IVP, 16 were B ultrasound, 10 were CT scan, 19 were CT scan, 18 were MRI scan, 3 were MRI scan, and 3 were focal lesion. Conclusion Imaging diagnosis of renal pelvic cancer has some value. IVP and CT are the preferred method of diagnosis of renal pelvis cancer, B ultrasound can be used as a census means. CT and MRI are significantly superior to IVP when tumors invade the renal parenchyma or have distant metastases.