A large peripherally enhancing mass left parietal lobe, extending from centrum semiovale till left periventricular region. it shows regular wall enhancement with central necrotic component.  mass shows peripheral uniform wall enhancement with Peritumoral edema with mild mass effect. No compression on ventricles or midline shift. 
Findings consistent with  cystic Glioma / Astrocytoma 
Other differential includes Abscess.  