PMC10171763_01
MIP, sagittal, coronal, and axial images of the thorax region show diffuse subcutaneous panniculitis involving the whole body both trunk and extremities. MIP: Maximum intensity projection
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F1
In view of no definitive diagnosis of fever (pyrexia of unknown origin), the patient was subjected to 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET)/CT which reveals diffuse subcutaneous panniculitis involving the whole body with hepatosplenomegaly and diffuse bone marrow uptake [Figure 1].
MIP, sagittal, coronal, and axial images of the thorax region show metabolic resolution of diffuse subcutaneous panniculitis (posttreatment) involving the whole body. MIP: Maximum intensity projection
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PMC10171763_01_IJNM-38-50-g002.jpg
F2
Four weeks post initial treatment follow-up, PET/CT scan reveals minimal subcutaneous fat stranding in the anterior chest wall with a metabolic resolution of preexisting diffuse subcutaneous panniculitis involving the whole body [Figure 2].