Cystic meningioma

ABSTRACT

Cystic meningiomas are uncommon tumours. Computed tomography scan and conventional magnetic resonance imaging may not differentiate those lesions form other tumours that are more frequently associated with cystic or necrotic changes; like gliomas or metastases. We are reporting 2 cases of cystic meningiomas in which the diagnosis was not suspected preoperatively because of short clinical history and rapid neurological deterioration. In addition; the cystic appearance of the tumours on imaging studies further confused accurate diagnosis. Although some authors believe that haemorrhage is rare in cases of meningioma, one of our cases was associated with haemorrhage and was proven to be a WHO Grade II meningioma. Because total resection is usually the goal in meningioma surgery, the help of a neruopathologist is important to establish the diagnosis during surgery