Fig. 7
Cryoablation of recurrent renal cancer. a The axial contrast-enhanced CT image shows an exophytic renal tumour (white arrow) next to the descending colon. The patient had undergone ipsilateral partial nephrectomy for RCC 6 months earlier. b, c Under local anaesthesia and US+BT guidance, two cryoneedles are inserted percutaneously (black arrows) into the lesion. The tumour is separated from the descending colon with an angioplasty balloon (yellow arrow) inserted percutaneously through a sheath. d, e Axial and reformatted CT images show the iceball (arrowheads) covering the tumour and the two cryoablation needles. During the 1.5-year follow-up, there was no evidence of tumour recurrence