FDG and 82Rb PET/MRI features of brain metastasis of breast cancer

u Y – A 64–year–old woman with stage IV breast cancer underwent an FDG and 82Rb PET brain studies. The PET brain images were fused with MRI brain T1 post–contrast images. The known enhancing left superoposterior frontal brain metastasis is positive on both FDG 82Rb PET/MRI images. The 82Rb PET/MRI showed better target–to–noise ratio, but showed nonspecific uptake in the superior sagittal sinus.