Renal infarction resulting from segmental arterial injury during radiofrequency ablation of renal tumor in patient with a single kidney.

Percutaneous radiofrequency ablation of renal tumors is known to be an effective treatment in patients with marginal renal function. Recently, this treatment was used in a patient with a renal tumor that arose in a single kidney. The tumor was completely ablated, but renal infarction developed because of a thermally injured segmental artery during ablation. We report the computed tomography imaging features, with an emphasis on the technical aspects of the ablation procedure.