Clinical question: History of craniopharyngioma. Signs and symptoms: Surveillance scan. Pre-and post enhanced brain MRI:Negative diffusion weighted series.The examination redemonstrates stable extensive bilateral frontal cystic encephalomalacia with resultant mild ex vacuo dilatation of frontal horns.There is an irregular T2 hypointensity and T1 isointensity with mild enhancement within the basal cistern consistent with known residual calcific craniopharyngioma. This finding remains stable since prior exam in its size, morphology and pattern of enhancement.Similar to prior exam there is a metallic hardware artifact overlapping the basal cistern. There is no detectable new finding since prior study. Stable postoperative changes of bilateral frontal craniotomy and unremarkable pre-and post enhanced exam otherwise..
1.Stable MRI exam since prior study re-demonstrating an approximately 11 mm mildly enhancing lesion in the basal cistern consistent with residual lymphangioma.2.Stable extensive bilateral frontal encephalomalacia.3.Unremarkable and stable pre-and post enhanced brain MRI otherwise.4.Chronic sinus disease most noticeable within the left maxillary with no significant change.