Post-COVID-19 Unusual Inflammatory Syndromes Detected on 18F-FDG PET/CT Scan

SARS-CoV-2 is primarily known to cause respiratory symptoms. However, in this global COVID-19 pandemic, we have come across many extrapulmonary manifestations during and in the immediate post-COVID phase such as gastrointestinal symptoms, kidney and liver injury, myocardial dysfunction and acute coronary syndromes, and neurological, thromboembolic, dermatological, and musculoskeletal disorders. We present 2 such unusual cases of post-COVID complications-diffuse panniculitis and inflammatory myositis, as well as their clinical and FDG PET/CT imaging features.