Medium-Vessel Vasculitis on FDG-PET/CT at Initial Presentation and Relapse.
case_report · Level V
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- Record sourced from PubMed, PMID 40179299.
- Also identified by DOI 10.1097/RLU.0000000000005806.
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Abstract
A 76-year-old man presented with morning facial edema, forearm induration, testicular pain, and a major inflammatory syndrome. Contrast-enhanced CT was inconclusive. Conversely, FDG-PET/CT showed pathological uptake of medium-vessels, particularly in the right arm and facial soft tissues, leading to the diagnosis of medium-vessel vasculitis. Symptoms vanished after methotrexate and corticosteroid initiation. While undergoing progressive corticosteroid dose reduction, he presented with lower limb myalgia. A second FDG-PET/CT confirmed the relapse, with extensive uptake of the intermuscular perforating arteries of the limb. This clinical report illustrates the good correlation between clinical symptoms and FDG-PET/CT findings, in these challenging to diagnose vasculitides.
Medical subject headings
- Fluorodeoxyglucose F18
- Positron Emission Tomography Computed Tomography
- Vasculitis