yellow pages: ataxia

Question 1

Acoustic schwannoma: presentation

Answer 1

Gradual unilateral hearing loss, tinnitus

Question 2

Acoustic schwannoma: MRI

Answer 2

contrast-enhancing mass in cerebellopontine angle

Question 3

BPPV: pathophysiology

Answer 3

otoliths stimulating hair cells —> unidirectional nystagmus

Question 4

BPPV: Epply maneuver

Answer 4

gets debris out of the canal

Question 5

Menieres Disease

Answer 5

multiple episodes of vertigo and low-frequency hearing loss; tx with gentamicin

Question 6

Anti-Yo antibody

Answer 6

anti-Purkinje cell

Question 7

Communicating hydrocephalus (NPH)

Answer 7

no blockage at the foramen of munro or elsewhere in the system; likely due to scarring of the arachnoid granulations

Question 8

Hydrocephalus ex vacuo

Answer 8

Brain atrophy —> ventricles dilate to fill the space

Question 9

Aqueductal stenosis

Answer 9

narrowing of the aqueduct of Sylvius which blocks the flow of cerebrospinal fluid (CSF) in the ventricular system. Blockage of the aqueduct can lead to hydrocephalus, specifically as a common cause of congenital and/or obstructive hydrocephalus

Question 10

Ped tumors tend to be…

Answer 10

infratentorial (eg medulloblastoma)

Question 11

Adult tumors tend to be…

Answer 11

supratentorial