There is a well-defined smoothly osteolytic mass lesion within the right frontal bone's both tables measuring 14.3 X 7 mm, having small intra-cranial extra-axial and subtle extra-cranial subgalial extension. There are similar left posterior high parital as well as clival and anterrior inferior frontal enhancing bony lesions.
There is bilateral globus pallidus rather symmetrical increased T2 signal intensity that is inconspicuous in T1 and shows no post-contrast enhancement.
The pituitary stalk is a bit prominent and homogeneously enhancing with loss of the normal bright T1 signal of its posterior lobe. The pineal gland is prominent and intensely enhancing.
There is opacification of the right mastoid air cells and middle ear cavity by low T1 and high T2 signals with post-contrast enhancement. This could represent otomastoiditis versus a LCH lesion.
No other significnat abnormaity noted.