Figure 1c. Normal distribution of FDG. Coronal CT (a), PET (b), and PET-CT fusion (c) images demonstrate the physiologic accumulation of FDG in the cerebral-cerebellar cortex at the base of the skull and in the myocardium, liver, kidneys, renal pelvis, bone marrow, and urinary bladder. Note also the minimal uptake in the mediastinum and bilaterally in the lower cervical and psoas muscles.