Introduction: Nephrocolic fistula is a pathological connection between the kidney and
colon. Percutaneous tumour ablation therapy is a rare cause of iatrogenic nephrocolic fistulain in
Case Presentation: Interventional radiologist should be careful especially in patients with repeated
ablation. Granulation tissue may lead to unexpected results secondary to tissue fragility and impedance
Conclusion: In addition, we should keep in mind that there is decreasing hydrodissection benefit in
cases with previous ablation. As far as we know, this is the first case report of an iatrogenic ephrocolic
fistula after microwave ablation for recurrence renal cell carcinoma.