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本文报道31例经手术及病理证实的肾盂输尿管肿瘤超声诊断结果。其中肾盂癌21例,输尿管癌10例。超声漏诊1例,误诊4例。诊断符合率83.33％。肾盂癌声像图为集合系统内低回声肿块,近50％伴肾积水。输尿管癌声像图为病侧肾及肿瘤以上部输尿管积水。超声能检出2cm以上肾盂癌,1cm以上输尿管癌。还能发现区域淋巴结及远处转移。对肿瘤浸润也能了解。超声对小于1cm的癌肿难以检出。肾盂癌需与肾结核、肾盂内血块及肾实质癌侵犯肾盂相鉴别。影像学技术的联合应用有助于正确诊断肾盂输尿管肿瘤。
This article reports 31 cases of surgically and pathologically confirmed renal pelvis and ureter tumor ultrasound diagnostic results. Among them, 21 cases of renal pelvis cancer and 10 cases of ureteral cancer. One missed diagnosis of ultrasound, misdiagnosis in 4 cases. The diagnostic coincidence rate was 83.33%. Renal pelvic cancer sonogram as the collection system hypoechoic mass, nearly 50% with hydronephrosis. Ureterography sonographic image of the lesion side of the kidney and tumor ureter hydronephrosis. Ultrasound can detect more than 2cm renal pelvis cancer, ureteral cancer more than 1cm. Also found regional lymph nodes and distant metastasis. Tumor infiltration can understand. Ultrasound of less than 1cm of the cancer is difficult to detect. Renal pelvis cancer and renal tuberculosis, renal pelvis and renal parenchymal tumor invade pyelography differential. The combined application of imaging techniques helps to correctly diagnose renal pelvis and ureter tumors.