Urgent! Physical examination of the right kidney occupying a space, what kind of tumor is it Is it cancer?

It is not necessarily that tumors occupy a space, and there are not many renal tumors heard in clinic. It may be strong! It is suggested (necessary) that the landlord do a color Doppler ultrasound. If the report has a slightly high density shadow, a tail at the rear or no echo at the rear, it is more likely to consider kidney calculi! And there is no report of abnormal lymph node enlargement (usually lymph node enlargement when there is tumor in the early and middle stages), I hope the landlord can rest assured!