Application of Imaging Examination in Diagnosis of Primary Ureteral Tumor

Objective To apply the imaging examination into diagnosis of primary ureteral tumor properly,and to improve the value of imaging examination in this field.Methods The results of imaging examinations including ultrasonography,CT,IVU,retrograde urography in 21 patients with primary ureteral tumor,which was proven by operation and pathology,were studied retrospectively.Results Ultrasonography was the sensitive way in diagnosis of hydronephrosis and localization of obstruction,X-ray CT scan played an important role in detecting lesions,the site of the lesions was determined in 56.3 %.IVU and retrograde urography could be carried out in limited patients,but they could easily find the obstruction and correctly determine the site of tumor in these patients.Conclusion Because of the advantages and disadvantages of these four techniques,ultrasonography should be of the first choice to find the hydronephrosis and site of the obstruction approximately,then CT was carried out or according to renal condition,IVU or etrograde urography may be selected to determine the site of the tumor.