Otology [4] Mvmnt Dis [1] Flashcards
Green ring around cornea, Kayser Fleischer ring is diagnostic of
wilsons disease
diagnostic features of tourretes
tics
often assoc, with Obsessive compulsive behavior and depression
Complex seizures often arise in which lobe?
temporal –> psychosis and personality disorders, including motor seizures.
How Psychiatric illnesses whose tx results in movement disorders
Antipsychotic drugs block DA in cerebral cortex → decrease psychotic disorders
also block DA in basal ganglia → Parkinsonian symp
How movement disorder tx results in psychiatric disorders
L-DOPA for parkinsons → new onset of hallucinations, delusions, erratic behavior (gambling)
Hallmarks of neural Hearing loss
assymetry of hearing between the two ears
and reduced speech perception scores (↓recognition/clarity).
conductive vs sensorineural hearing loss on an audiogram
conductive: affects all freq of hearing
Sensory: affects high freq hearing initially
Which is lost first? OHC or IHC?
OHC lost first (noise trauma) and replaced by non functioning supporting cells
most common cause of non-syndromic (genetic/congenital) hearing loss
connexion 26
endolymphatic hydrops
path condition characterized by expansion of the endolymphatic compartment of the inner ear (scala media).
(menieres D)
causes of neural hearing loss
8th nerve tumors
auditory neuropathy
MS
(remember, look for assymetric HL)