A neuro-oncologic challenge: the case of a large, aggressive, malignant meningioma of the skull base with paranasal sinus involvement

Malignant meningiomas, rare tumors that account for approximately 1%-3% of all meningioma, have high recurrence, morbidity, and mortality rate and a particularly poor outcome. Surgical excision followed by adjuvant radiotherapy is the current approach for the treatment of these tumors.