Presentation
Middle aged female. Unspecified previous neurosurgery. Admitted out of hours with first fit.
Patient Data
Left frontal craniectomy with cranioplasty. Minor underlying post operative gliosis.
3cm round anterior midline isodense mass centered on the planum sphenoidale at the site of the olfactory groove, with avid symmetrical edema.
Smaller similar lesion in the right temporal region close to the sphenoid wing.
Hyperostosis of the floor of the anterior cranial fossa, without bony destruction.
Left frontal craniotomy.
Case Discussion
Meningiomas are common. They may be multiple and a wide range of potential imaging appearances are possible. However, the vast majority have a typical appearance, as in this case with avid homogenous enhancement and a dural tail.
A small proportion occur along the olfactory groove/planum sphenoidale with a very central, symmetrical appearance.
Surgery was performed which confirmed two meningiomas.
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