Figure 34: FDG-PET/MRI of a 47-year-old female patient with a 3-month history of pressure sensation in the frontal head.
a) Sagittal contrast-enhanced T1w images showing an enhancing tumor within the frontal sinus and linear enhancement of the mildly thickened dura (arrow).
b) The posterior and anterior cortical bone of the frontal sinus is thinned by the tumor and there is intracranial tumor growth (arrow).
c) FDG-PET/MRI demonstrates significantly increased metabolism. Histologically proven Ewing sarcoma.