Two Cases of Strictures after Percutaneous CT-Guided Radiofrequency Ablation for Renal Cell Carcinoma

Figure 5

(a) Filiform stenosis at the pyeloureteral junction on retrograde pyelogram. (b) Approach of the middle calyx with flexible ureterorenoscope. (c) Insertion of a double-J stent in the lower calyx.

(a)

(b)

(c)