Female, 59 years old, with Chiari malformation and pseudotumor cerebri, VA and LP shunts, six month follow-up. Evidence of suboccipital craniectomy and resection of the posterior C1 arch is again seen for Chiari decompression. The shape and positioning of the cerebellar tonsils are unchanged from prior.Minimal nonspecific T2 hyperintensity along the body of the right lateral ventricle is unchanged. No other new or significant parenchymal lesions are seen. No mass effect or edema is detected. No abnormal collections are noted. The previously seen minimal cerebral convexity subdural effusions are not well visualized on today's examination. The ventricular system is stable and normal in size.
1.Demonstration of findings compatible with surgical Chiari decompression. The cerebellar tonsils are stable in shape and positioning.2.No new or acute intracranial abnormalities.