19 years old male with history of craniopharyngioma now with increased headache, evaluate ventricular size. Patient is status post right frontal craniotomy, with placement of ventriculostomy catheter having tip in the third ventricle and small amount of encephalomalacia abutting the distal catheter; this is not significantly changed in appearance from the 2007 comparison study. Lateral and third ventricles are effaced secondary to decompression.Cystic focus with internal calcification in the interhemispheric fissure is unchanged in size from recent prior MRI study.There is no evdence of intracranial hemorrhage, mass or edema. The remaining ventricles and basal cisterns are normal in size and configuration. The calvaria and skull base are radiographically normal. The visualized paranasal sinuses and mastoid air cells are normally pneumatized.
No hydrocephalus or change in ventriculostomy catheter position since 2007.