Outer Ear Disorders

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  1. Temporomandibular Joint Syndrome (TMJ)
    • Caused by clenching or grinding teeth
    • Intermittent or chronic fullness in ear 
    • Sharp and momentary pain especially when chewing 
    • May experience a sense of hearing loss, tinnitus, and vertigo
  2. Microtia
    • Very Small Auricle 
    • Usually nothing more than deformed nubbins of tissue
    • Grade 1: Smaller than normal but mostly normal anatomy
    • Grade 2: Lower half of the ear looks normal; EAC may be normal or closed
    • Grade 3: Peanut shaped skin and cartilage; No EAC
    • Grade 4: Complete absence of Auricle and EAC
  3. Anotia
    Missing Auricle
  4. Macrotia
    Very Large Auricle
  5. Hematoma
    • Usually cased by severe blunt trauma 
    • If left untreated can cause "Cauliflower Ear"
  6. Pre-Auricular Cyst
    Small cyst just anterior to the helix and just above the tragus
  7. Basal Cell Carcinoma
    • Nonmelanoma Skin Cancer
    • Caused by sun exposure or other ultraviolet radiation 
    • Growth on the skin
    • Treated through surgery 
    • Doesn't normally cause a hearing loss
  8. Squamous Cell Carsinoma
    • Nonmelanoma Skin Cancer
    • Caused by exposure to sunlight or other ultraviolet radiation
    • Growing bump that may have a rough surface 
    • Removed through surgery 
    • Usually no hearing loss
  9. Melenoma
    • Most damgerous type of skin cancer
    • Caused by changes in the skin cells that make melanin 
    • Treated through surgery 
    • Usually does not cause a hearing loss
  10. Keloids
    • Growth of extra scar tissue where skin has healed after injury
    • Treated through surgery, laser, injections, radiation
  11. Cauliflower Ear
    • Swelling of the auricle
    • Caused by multiple traumas to the ear
  12. Atresia
    • EAC has not formed;may be cartilage, bone, or both
    • Best treated if only cartilage is involved
    • If middle ear is involved may cause 50-60 dB hearing loss
  13. Stenosis
    Narrowing of the EAC
  14. Collapsing EAC
    • Cartilage becomes floppy
    • Pushing on the helix of the auricle causes opening of EAC to close 
    • Traps wax within the ear
  15. External Otitis
    • Infection of EAC skin also called "Swimmer's Ear"
    • Caused by moisture, perspiration, staph infections 
    • Changes acidity level of the EAC
    • Symptoms: Swollen/draining/tender canal, painful tragus, itching
    • Treatment: Eardrops and Earwicks (long pieces of cotton that get the medicine down
  16. Malignant Otitis Externa
    • Can cause bone infection and death
    • Treatment: topical and systematic antibiotics
  17. Osteomas
    • Bony tumors in the EAC
    • Treatment depends on how it is interfering with sound transmission
  18. Exostoses
    • Outward bony projections usually seen on the inner 2/3 of the canal
    • Treatment depends on how it is interfering with sound transmission
  19. Cerumen
    • Build up can cause conductive hearing loss
    • Must know if the Tm is in tact
    • Remove wax; may require softening drops, irrigation, or removal with special tubes
  20. Perforation of TM
    • Build up of pressure in the middle ear
    • Infections 
    • Pointed objects
    • Excessively loud noises 
    • Usually heal in a few weeks
  21. Tympanosclerosis
    • Caused by long term Otitis Media 
    • White scar tissue seen on the eardrum
  22. Retracted Tympanic Membrane
    • Eardrum is concave (pulled back)
    • Caused by middle ear infections; fluid in the middle ear
    • Treated by tubes in the ear
  23. Serous Otitis Media
    • Fluid in the middle ear that can usually be seen through the TM
    • Treatments: tubes for drainage
Card Set:
Outer Ear Disorders
2015-01-26 00:42:55
Hearing Disorders
Hearing Disorders
Hearing Disorders; Outer Ear Disorders
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