Radiology Case Reports (Nov 2020)

Urinothorax following percutaneous image-guided renal cryoablation

  • Helen Ng, MBChB,
  • Kaiwen Wang, MBChB,
  • Jon Cartledge, MBChB, MD, FRCSEd (Urol),
  • Chandra Shekhar Biyani, MBChB, FRCS,
  • Christy Ralph, PhD, BMBS, BMedSci, MA, MRCP,
  • Satinder Jagdev, MBChB, PhD,
  • Naveen Vasudev, PhD, MRCP, MBChB, BMSc (Hons),
  • Selina Bhattarai, MBBS, MD Pathology, FRCPath,
  • Bobby, Bhartia, MBChB, FRCR,
  • James Lenton, MBChB, FRCR,
  • Jonathan Smith, MBChB, FRCR,
  • Simon Whiteley, MBBS, FRCA, FFICM,
  • Peter Tcherveniakov, MBChB, FRCS,
  • Tze Min Wah, PhD, MBChB, FRCR

Journal volume & issue
Vol. 15, no. 11
pp. 2348 – 2352

Abstract

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A 69-year-old lady with 2 renal cell carcinomas, one sited at the upper pole of her solitary right kidney, underwent percutaneous image-guided cryoablation and developed urinothorax as a complication. This was diagnosed from pleural fluid analysis and radiology imaging with computed tomography (CT). Management included image-guided chest drain and retrograde ureteric stent insertion to divert the urine from entering the pleural cavity. CT images demonstrated a fistula between the site of renal puncture and the pleural cavity, indicating that the cryoprobes traversed the diaphragm during the procedure. This case highlights urinothorax as an unusual complication of cryoablation of renal cell carcinoma. Prompt diagnosis by interventional radiologists is crucial to avert from this potentially life-threatening complication.

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