The increased use of abdominal cross-sectional imaging has contributed to a greater detection of incidental small renal masses. Treatment options for localized disease renal cell carcinoma include radical nephrectomy or partial nephrectomy (PN), the former being preferred for treatment of early-stage tumors. The most adopted technique for follow-up imaging is contrast-enhanced computed tomography (CT), whose findings can cause uncertainty and unnecessary repetition of examinations. Our purpose is to describe CT findings after PN and to describe evolution in time of such images.