Intraventricular meningioma with bilateral petrous meningiomas mimicking NF-2: A case report and review of literature.

Abstract

BACKGROUND: Multiple meningiomas (MMs) are defined as the presence of at least two lesions that appear at different intracranial locations, without the association of neurofibromatosis 2 (NF-2). They constitute 1-9 % of meningioma patients with females seen more predominantly. CASE PRESENTATION:We report an unusual case of giant intraventricular meningioma with bilateral petrous meningiomas in a young female patient which gave a radiological impression of NF-2. Pure tone audiometry (PTA) was done which ruled out any sensorineural hearing loss (SNHL), hence NF-2 was ruled out. The patient was successfully operated upon by parietal craniotomy using the interparietal sulcus approach, and complete excision of the intraventricular tumor was done. Postoperatively, the patient had no new deficits. The patient was then followed up with Gamma knife surgery for the bilateral petrous meningiomas and anterior falcine meningioma. CONCLUSION:Multiple meningiomas need to be differentiated from neurofibromatosis-2, which may alter management and prognosis. Every meningioma must be operated on its merit, irrespective of whether it is part of multiple meningiomatosis or not.