disorders Flashcards
anotia
absence of pinna
microtia
small sized pinna
atresia
when part or all of ear canal does not form
stenosis
narrowing of ear canal
external otitis
bacterial infection of ear canal, swimmers ear
exotosis
bony growth formed in ear canal
TM perforations
hole in middle ear, caused by punctures or forceful pressure
tympanosclerosis
scarring of eardrum as result of repeated infections
otitis media
infection of the middle ear
treated by antibiotics, tubes
cholesteotoma
abnormal skin growth in the middle ear behind the eardrum
otosclerosis
formation of new bone growth around footplate of stapes
familial component, hormonal pregnancy
glomus tumor
rare, arise from glomus bodies
viral and bacterial inner ear
herpes, syphilis, measles, mumps, bacterial meningitis
presbycusis
hearing loss due to old age, inner ear
noise induced hearing loss (NIHL)
high levels of noise can cause HL
temporary threshold shift (after a concert) or permanent, inner ear
ototoxicity
ear poisoning, damage to inner ear due to chemical agents such as drugs
meniere’s disease
Caused by an excessive amount of endolymphatic fluid that distends Reissner’s membrane
4 symptoms- vertigo (dizziness), tinnitus (ringing in ears), aural fullness, fluctuating sensorineural HL with vertigo attacks
Pseudohypacusis
not an actual hearing loss but the patient thinks there is
multiple sclerosis (retrocochlear)
nervous system disease that affects your brain and spinal cord
muscle weakness, numbness, trouble with coordination/balance
acoustic neuroma
noncancerous tumor grows from inner ear to brain
sensorineural HL, progressive HL, tinnitus
neurofibromatosis type 2
rare inherited disorder, benign tumors throughout the body, retrocochlear, may see bilateral acoustic neuroma
