A heterogenous peripherally enhancing cystic mass left parietal lobe within deep cerebral white matter. mass shows peripheral ring enhancement with central cystic necrosis. mild peritumoral edema with mild mass effect. Mild effacement of left lateral ventricle.  No midline shift.  
Rest of brain parenchyma appear normal. 
Differentials include Cystic Astrocytoma /  or cystic Glioma.
 
 