Increased FDG uptake on PET CT including uptake in uterus. PET CT scan. 1. Interval increase in FDG uptake of multiple hypermetabolic osseous metastases throughout the axial and proximal appendicular skeleton. 2. Mildly increased FDG uptake of mildly hypermetabolic mediastinal lymph nodes. 3. Moderate FDG uptake of the uterus centrally that was not present on imaging performed ten months prior.