4 y/o male with headaches. Evaluation of ventricular size s/p Chiari I decompression There is no evidence of intracranial hemorrhage, mass or edema. The lateral, third, and fourth ventricles are enlarged, compatible with hydrocephalus. The ventricles appear larger when compared to the MRI dated 6/18/2009.There is evidence of an occipital decompression with post-surgical changes. There is fluid present in the post-surgical bed. The visualized paranasal sinuses and mastoid air cells are normally pneumatized.
1. Enlarged lateral, third, and fourth ventricles. Hydrocephalus consistent with prior history of Chiari I malformation. 2. Post-operative changes as described above.