Presentation
Periodic convulsions, slugged speech, lapses in consciousness.
Patient Data
Partially calcified left temporal intracranial lesion with a wide base to the dura over the floor of the middle cranial fossa. The texture of the lesion is solid, hyperdense and partially calcified with avid solid contrast uptake. Extensive perilesional oedema.
Moderate mass effect with complete effacement of ipsilateral sulci. Uncus displaced medially with a slight midline shift but not herniation. Contralateral sulci are partially effaced consistent with mildly raised intracranial pressure.
Case Discussion
The typical meningioma is a homogeneous, hemispheric, markedly enhancing extra-axial mass located over the cerebral convexity, in the parasagittal region, or arising from the sphenoid wing. Meningiomas may originate in unexpected locations such as the orbit, paranasal sinus, or ventricles or be entirely intraosseous (within the calvaria) 1.
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