A "Leopard Man" Aspect on 18 F-FDG PET/CT Revealing a VEXAS Syndrome

Clin Nucl Med. 2023 Jan 1;48(1):e33-e34. doi: 10.1097/RLU.0000000000004443. Epub 2022 Oct 17.

Abstract

VEXAS (vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic) syndrome is an adult-onset autoinflammatory disease caused by somatic UBA1 mutations first described in 2020. Most of these patients met clinical criteria for an inflammatory syndrome (relapsing polychondritis, Sweet syndrome, polyarteritis nodosa, or giant-cell arteritis) or a hematologic condition (myelodysplastic syndrome or multiple myeloma) or both. We described here an FDG PET/CT "leopard man" appearance, with abnormal marrow recruitment the findings, in a 70-year-old man diagnosed with a VEXAS syndrome.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Aged
  • Fluorodeoxyglucose F18
  • Giant Cell Arteritis*
  • Humans
  • Male
  • Mutation
  • Polychondritis, Relapsing*
  • Positron Emission Tomography Computed Tomography / methods
  • Positron-Emission Tomography

Substances

  • Fluorodeoxyglucose F18