study comprises transverse T1-weighted images pre- and post-gadolinium, T2-weighted images and FLAIR images, and sagittal T2-weighted image
diffuse thickening of the pachymeninges over the entire cerebrum, most marked on the left
lesion is hyperintense in T2-weighted images; marked enhancement after gadolinium administration
herniation of the cerebellum
signal intensity of muscles appears normal despite history of atrophy
diffuse meningeal lesion suggests meningitis as the principal differential diagnosis; diffuse meningeal neoplasia is less likely
cerebellar herniation is evidence of increased intracranial pressure
MR lesions are compatible with signs
CSF analysis is indicated as a means of confirming diagnosis; however, increased intracranial pressure is a contraindication to puncture of cerebellomedullary cistern; a lumbar puncture should be considered instead