nystagmus Flashcards

1
Q

seesaw?

A

parasellar or midbrain

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2
Q

downbeat?

A

chiari I aka cervicomedullary jxn, cerebellar flocculus

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3
Q

opscolonus? all directions

A

neuroblastoma (adrenals)

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4
Q

periodic alternating

A

cerebellar nodulus or cervicomedullary jxn

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5
Q

upbeat

A

cerbellum, medulla, midbrain

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6
Q

spasmus nutans? 2

A

parasellar, hypothalamic is similar but usually no tumor

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7
Q

gaze evoked nystagmus

A

cerebellum

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