Fig. 1

A, B Axial contrast-enhanced CT images of the abdomen (soft tissue kernel) and chest (lung kernel) obtained at baseline (A, May 2019) and follow-up after treatment (B, September 2019). Large heterogeneous enhancing left renal exophytic mass representing the known primary renal cell carcinoma (yellow arrow), decreasing in size on the follow-up examination (B), with resolution of the lung metastases in the right upper and left lower lobes (blue arrows). Imaging findings were consistent with favorable response to therapy