Neuro

Question 1

ACOM vs PCOM vs lenticulostriate vs pontine stroke. ant spinal cord syndrome

Answer 1

compress optic chiasm -> bitemp hemianopsia vs compress CN3 -> CN3 palsy, down/out eye, mydriasis vs single extremity vs central vertigo. loss ASA -> bil paralysis, no pain/temp, urin rtn

Question 2

how to dx idio cranial HTN vs tx optic neuritis. common comorbidity of MS?

Answer 2

MRI then LP elev opening pressure vs IV methylprednisolone. dep

Question 3

details NF1 vs 2. TS

Answer 3

Liscch - pig iris hamartomas; optic glioma compressing CN2 -> CN2 atrophy, proptosis, vision loss vs meningioma, ependyoma. rhabdomyoma, mitral regurg

Question 4

details Sturge Weber vs vHL

Answer 4

leptomeningioma w/ calc -> sz, episcleral hemangioma -> IOP -> glaucoma vs hemangioblastoma retina, brain/cerebellum, spine -> MRI

Question 5

details Meniere’s. Cogan syndrome

Answer 5

endolymph hydrops. severe version of Meniere’s w/ both high & low freq hearing loss

Question 6

central vertigo

Answer 6

etio: pontine stroke/basilar infarct, brain lesion
sx: vertical or rotary nystag, focal neuro defect
dx: CT r/o bleed, MRI for cause