Reason: hydrocephalus, aqueductal stenosis , eval for changes, 1 year follow up History: yearly follow up , eval for changes. Stenosis of the cerebral aqueduct and third ventriculostomy defect appears similar to the prior exam. Dilated lateral and third ventricles are unchanged in size. Fourth ventricle is unchanged. Robust CSF flow is unchanged.Scattered foci of intraparenchymal and intraventricular susceptibility is unchanged. Small amount of FLAIR signal surrounding the right frontal ventriculostomy catheter tract likely represents glial cyst and is unchanged. No new areas of abnormal T2 signal.No midline shift or mass effect. No diffusion abnormality. No extra-axial fluid collection. Normal flow voids within the major intracranial vascular structures. Partial empty sella is unchanged. Prominent mucous retention cyst in the right maxillary sinus is unchanged.
Stable exam with no significant change in lateral and third ventriculomegaly.