Fig. 4From: Brain metastases assessment by FDG-PET/CT: can it eliminate the necessity for dedicated brain imaging?Axial CT (right), fused (middle), and PET (left) brain images of brain-included whole-body FDG PET/CT showing bilateral brain metastatic lesions of unknown primary showing ring enhancement pattern (black arrows) with max SUV 11.4 which is greater than the FDG uptake in the surrounding and contralateral gray matter. The primary tumor turned out to be lymphomaBack to article page