Parkinson's diease with increasingly severe pseudobulbar affect evaluate frontal structures. There appears to be slight relatively high cortical T2 signal in the bilateral medial portions of the anterior frontal lobes bilaterally and trace periventricular white matter T2 hyperintensity. The cerebellar tonsils extend up to 10 mm inferior to the foramen magnum and the posterior fossa appears to be small. There is no evidence of intracranial hemorrhage, mass, or acute infarct. There is no abnormal intracranial enhancement. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift. The major cerebral flow voids are intact. The orbits, calvarium, paranasal sinuses, and scalp soft tissues are grossly unremarkable.
1. Apparent slight relatively high cortical T2 signal in the bilateral medial portions of the anterior frontal lobes bilaterally, which ma be technical or related to a neurodegenerative process, as well as nonspecific trace periventricular white matter T2 hyperintensity. 2. Findings suggestive of Chiari type 1 malformation.