Ureter dilate, have tumour, kidney ponding, how should do

Ureter dilatation, there are tumors, hydronephrosis, need to hang hospital nephrology. Suggestions: you should do a ureter color Doppler ultrasound, renal color Doppler ultrasound and urine routine examination, if there is a tumor, need to immediately undergo surgery, and then do pathological biopsy, determine the nature, and then ureter catheterization.