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Case report
Iatrogenic thyroid pseudoaneurysm following thyroid nodule radiofrequency ablation
  1. Shaun Previn Appaduray1 and
  2. Chow Wei Too2
  1. 1Department of Diagnostic Radiology, Singapore General Hospital, Singapore
  2. 2Department of Vascular and Interventional Radiology, Singapore General Hospital, Singapore
  1. Correspondence to Dr Shaun Previn Appaduray; shaunprevin88{at}


A 54-year-old Chinese woman presented for radiofrequency ablation (RFA) of benign thyroid nodules. A few hours after the procedure, the patient developed neck swelling and tenderness. Doppler ultrasound (US) images of the neck revealed haematoma with a vascular hypoechoic mass at the RFA site, suspicious for pseudoaneurysm. These findings were confirmed on subsequent on-table fluoroscopy following direct US-guided needle puncture and injection of contrast, demonstrating opacification of the mass and extravasation. Successful occlusion of the pseudoaneurysm was performed using US-guided thrombin injection. The patient made a good recovery with follow-up US 1 month later showing no recurrence of haematoma or pseudoaneurysm.

  • interventional radiology
  • radiology
  • otolaryngology / ENT
  • thyroid disease

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  • Contributors SPA contributed to conception, interpretation, drafting and revision of work. CWT contributed to conception, interpretation and final approval of work. The first author, SPA, agrees to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent for publication Obtained.

  • Provenance and peer review Not commissioned; externally peer reviewed.