 An extra-axial enhancing mass with dural tails is noted overlying the right parietal lobe measuring up to 6 cm in maximal transaxial dimension. This causes mass effect upon the underlying brain parenchyma with sulcal effacement, however without significant right to left midline shift. Given the limitation of two sequences, the adjacent sagittal sinus appears intact, however the lesion does abut it and involvement cannot be excluded.A surgical defect is present involving the right frontal lobe with overlying calvarial changes from craniotomy including thinning. Additionally, the CSF space appears to extend inferiorly in the right anterior cranial fossa to the level of the ethmoid air cells, displacing bilateral rectus dry right left laterally which may suggest the presence of an meningocele.Expected vascular flow voids are demonstrated. There are no findings of hydrocephalus. The paranasal sinuses and mastoid air cells are clear.
1.An extra-axial enhancing mass is noted overlying the right parietal lobe measuring up to 6 cm in maximal transaxial dimension.2. MRI findings suggestive of right anterior cranial fossa meningocele extending to the level of the ethmoid air cells.