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Curious case of a true aneurysm of the lateral femoral circumflex artery: a rare but important differential in the diagnosis of a painless groin mass
  1. Joe Hwong Pang1,
  2. Ahmed Elbasty2 and
  3. Felicity J Meyer3
  1. 1 Orthopaedics, James Paget University Hospitals NHS Foundation Trust, Great Yarmouth, UK
  2. 2 Department of Surgery, Division of Vascular Surgery, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, Norfolk, UK
  3. 3 Department of Surgery, Division of Vascular Surgery, Norfolk and Norwich University, Norwich, UK
  1. Correspondence to Dr Joe Hwong Pang, J.pang{at}


A 60-year-old man, presented with a 3-month history of a painless, non-pulsatile firm mass in the left groin. He was referred to sarcoma clinic for a biopsy following MRI and B mode ultrasound (US). This was abandoned when colour flow US imaging revealed the mass more in keeping with a pseudoaneurysm rather than malignancy. He was then referred to the vascular team for further investigation, where CT angiography revealed a large and thrombosed true aneurysm of his left femoral circumflex artery. This was treated with open surgical repair. Technical challenges included an adherent femoral nerve, which was carefully dissected off the aneurysm before the aneurysm was ligated and resected. An uneventful recovery followed with discharge within 48 hours. Follow-up duplex US scan revealed patent arteries with no further abnormalities.

  • surgery
  • vascular surgery

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  • Contributors JHP: write-up, image editing and provision, literature review. AE: guidance, editing and review of report, provision and editing of images. FJM: case report editing, image review, guidance on write-up and advisor on project.

  • 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.

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

  • Patient consent for publication Not required.