CASE 51: MRI Brain

58F headaches

Findings reveal an extra axial mass lesion in the left frontal region, with contrast enhancement and a peritumoral cystic lesion

DIAGNOSIS

MENINGIOMA WITH PERI TUMORAL CYST / 

CYSTIC MENINGIOMA

PEARLS  

cystic meningioma is applied to both meningiomas with intratumoral degenerative cyst formation as well as those with peritumoral  arachnoid cysts or reactive intraparenchymal cysts. 

Cystic areas form due to degeneration, reactive changes, direct secretion or a combination of either of these

regular features of meningiomas (extra axial, dural tail, enhancement) + cystic lesion that shows enhancement areas