56-year-old female status post ventriculoscopy for colloid cyst resection. There has been interval colloid cyst resection with no significant measurable residual mass noted. There is new T2 hyperintensity involving the adjacent corpus callosum as well as just inferolateral to the right frontal horn with restricted diffusion and ADC hypointensity suggestive of ischemia. Susceptibility hypointensity is noted involving the corpus callosal component. A small amount of susceptibility within the dependent occipital horns is consistent with a small amount of postprocedural hemorrhage. Redemonstrated is pneumocephalus. Ventricular sizes are unchanged.There are scattered punctate foci of T2 hyperintensity primarily within subcortical white matter without associated mass effect, restricted diffusion, susceptibility abnormality, or enhancement. Flow voids are present within the major vessels indicating patency. The paranasal sinuses and mastoid air cells are clear.
There has been interval colloid cyst resection with no significant measurable residual mass noted. There is new T2 hyperintensity involving the adjacent corpus callosum as well as just inferolateral to the right frontal horn with restricted diffusion and ADC hypointensity suggestive of ischemia. Susceptibility hypointensity is noted involving the corpus callosal component, suggesting hemorrhage within postprocedural changes. A small amount of susceptibility within the dependent occipital horns is consistent with a small amount of postprocedural hemorrhage