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

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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.

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Authors and Affiliations

  1. Department of Radiology, The Johns Hopkins Hospital, 600 North Wolfe Street, Baltimore, MD, 21287, USA

    David Bonekamp & Nafi Aygun

  2. Aurora Advanced Healthcare, 3003 W Good Hope Rd, Milwaukee, WI, 53209, USA

    Joshua D. Smith

  3. Central Radiology, The Johns Hopkins Hospital, 600 North Wolfe Street, Baltimore, MD, USA

    David Bonekamp

Authors
  1. David Bonekamp
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  2. Joshua D. Smith
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  3. Nafi Aygun
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Correspondence to David Bonekamp.

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Bonekamp, D., Smith, J.D. & Aygun, N. Avid FDG uptake in a rapidly enlarging common carotid artery mycotic aneurysm, mimicking lymphadenopathy. Emerg Radiol 16, 383–386 (2009). https://doi.org/10.1007/s10140-008-0778-2

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  • DOI: https://doi.org/10.1007/s10140-008-0778-2

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