Additional Findings of 18F-AIF-FAPI-42 PET/CT in a Patient With Mycosis Fungoides-Type Cutaneous T-Cell Lymphoma: Comparisons With 18F-FDG PET/CT.

A 44-year-old woman presented with extensive skin patches and pruritus persisting for 3 years. Histopathological examination of the skin from the right abdomen confirmed mycosis fungoides-type cutaneous T-cell lymphoma. Staging PET with 18F-FDG PET/CT) showed increased uptake in the skin on the right abdomen and left hip. Subsequently 18F-FAPI-42 PET/CT revealed additional foci of abnormal uptake on the skin of the chest and back.