a: Axial MRI of visceral cranium: Solid-tissue mass of the right
temporal bone with hyperintense pathological magnetic signal and peripheral
areas of enhancement after gadolinium administration
b,c: CT of the temporal bone. An invasive soft tissue density lesion
arising from the right temporal bone occupying partially the right mastoid
cavity-with corrosion of the trabeculae of bone
d: Axial MRI of visceral cranium (2 years later): Hyperintense signal in
the resection cavity with clear reduction of the pathological signal and of the
intake of gadolinium in the right temporal bone