ipsilateral sensorineural hearing loss
differential diagnosisMeniere disease
sudden sensorineural hearing loss
<infection>
mumps hearing loss
Ramsay-Hunt syndrome(VZV)
<tumor>
cochleovestibular schwannoma
<trauma>
perilymph fistula(PLF,外リンパ瘻)
acoustic trauma (nose induced hearing loss)
→ ☆high frequency loss (loss of the cochlear base) caused by ☆trauma to the stereociliated cells of the organ of Corti
facial nerve palsy
UMN,LMNupper division of facial nucleus→connected to both sides of the motor cortex
lower division of facial nucleus→connected only to the other side of the motor cortex
UMN injury→palsy only on the lower side of the face
LMN injury→palsy on both upper and lower sides of the face neurologyENT HirotoShishido
