¹⁸ FDG PET/CT in a Case of Relapsing Polychondritis

Relapsing polychondritis (RP) is a rare autoimmune condition that targets the type II collagen and presents as remitting, relapsing the episodes of cartilaginous inflammation often involving the auricular, nasal, and tracheal cartilages. Here, we present the 18F-fluoro-deoxy-glucose positron emission tomography/computed tomography ( 18 F-FDG PET/CT) scan findings of a 22-year-old female with stridor, fever, and progressive respiratory symptoms, which showed a gamut of multisystemic cartilaginous abnormalities consistent with RP. 18 F-FDG PET/CT plays a crucial role in evaluating the extent of disease at the earliest, to determine the biopsy site and initiation of treatment in RP.