Avid FDG uptake in a rapidly enlarging common carotid artery mycotic aneurysm, mimicking lymphadenopathy

David Bonekamp, Joshua D. Smith, Nafi Aygun

Research output: Contribution to journalArticlepeer-review

Abstract

We present a case of mycotic pseudoaneurysm of the right common carotid artery, which demonstrated avid FDG uptake mimicking lymphomatous involvement on a non-contrast FDG-PET/CT scan. Within 6 days of initial presentation, the pseudoaneurysm enlarged rapidly and required emergent surgical repair. To the best of our knowledge, this is the first reported case both of a PET-positive non-aortic aneurysm and a rapidly enlarging common carotid artery pseudoaneurysm. This case highlights the importance of contrast administration with PET/CT and the heralding nature of FDG uptake in an aneurysm wall for impending aneurysm rupture.

Original languageEnglish (US)
Pages (from-to)383-386
Number of pages4
JournalEmergency Radiology
Volume16
Issue number5
DOIs
StatePublished - Sep 1 2009

Keywords

  • Carotid artery
  • FDG-PET
  • Lymphoma
  • Mycotic aneurysm
  • Rapidly enlarging

ASJC Scopus subject areas

  • Emergency Medicine
  • Radiology Nuclear Medicine and imaging

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