Anterior projection whole body rotating three-dimensional maximum intensity projection reconstruction of F18-FDG PET/CT obtained 66 minutes after administration of 11.1 mCi of F18-FDG. There is intense hypermetabolism associated with the hypothalamic mass and thickened infundibulum (white circle). There is also diffuse cervical (long arrow), mediastinal (small arrow) and retroperitoneal (dashed arrow) lymphadenopathy.