Teaching NeuroImages: Corkscrew medullary veins in active neurosarcoidosis

Teaching NeuroImages: Recurrent oculomotor palsies caused by neurosarcoidosis.

Teaching NeuroImages: diffuse cerebral neurosarcoidosis mimicking gliomatosis cerebri.

A 30-year-old man with a history of bipolar disease presented with 6 months of cognitive decline, unsteady gait, urinary retention, and bilateral upper extremity tremors. Multiple punctate enhancing lesions were seen on brain MRI (figure). Differential diagnosis included infection (viral, tuberculosis, or cryptococcus), toxic leukoencephalopathy, gliomatosis cerebri, angiocentric lymphoma, and ...

Teaching NeuroImages: Gasperini syndrome.

Gasperini syndrome is a rare crossed brainstem syndrome characterized by ipsilateral impairment of the VI, VII, and occasionally VIII cranial nerves and contralateral sensory loss. The syndrome, initially described by Ubaldo Gasperini in 1912, results from a lesion of the caudal pons tegmentum (figure e-1, links.lww.com/WNL/A47). The most frequent cause is the occlusion of the long circumferent...

Teaching NeuroImages: chordoma.

A 30-year-old man presented with recurrent headaches. CT head revealed a clival chordoma (figure 1A). Chordomas originate from the embryonic remnants of the notochord and account for 2%–4% of all malignant bone tumors. They have a predilection for the axial skeleton, with 35% affecting the spheno-occipital region. The incidence peaks at ages 20–40 years. Male patients are affected twice Figure ...

Teaching neuroimages: Gradenigo syndrome.

since 1951, it is now a weekly with 48 issues per year.