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Ear Revision (Differentials (Sensorineural Hearing Loss (Toxic…

- - - - Congenital atresia
      - Wax
      - Foreign body
      - OE
    - - Perforation
    - - Otosclerosis
      - Glue ear: otitis media w/ effusion
      - acute OM
    - - Allergic rhinitis
      - Nasopharyngeal carcinoma
  - - - Aminoglycosides
      - Acute OM
    - - HSV mononeuritis
  - - - Cerebrovascular disease
      - Migraine
      - MS
      - Vertebrobasilar insufficiency
      - Drugs: aminoglycosides, alcohol
    - - BPPV
      - Meniere's
      - Acute vesitbulitis
      - Vestibular schwannoma
      - Suppurative OM (acute suppurative OM or cholesteatoma)
  - - - Wax impaction
      - OE
      - Furuncle
      - Malignant OE
    - - OE w/ effusion (glue)
      - Eustachian tube dysfunction
      - AOM
      - Mastoiditis
      - Complication of CSOM
    - - CNVII: Bells', Ramsay Hunt
      - CNV: nasal malignancy, oral cavity lesion, dental pain
      - CNIX: tongue base, tonsil malignancy, tonsillitis, quinsy, neuralgia
      - CNX: laryngeal, pharyngeal, oesophageal pathology
      - Cervical plexus: C2, C3 root lesion
- - - - Acute: OE, OM, toxicity, trauma, infection, compression (schwannoma)
      - Chronic age related SNHL, noise excess
      - Fluctuation: Meniere's, middle ear effusion
    - - Mild: OE
      - Copious: OM w/ perforation, cholesteatoma
    - - OE,OM
    - - Meniere's, schwannoma, ototoxicity
  - - - Scanty, serous: OE
      - Profuse, mucoid: OM
      - Purulent, copious: cholesteatoma
    - - Acute OE
      - Acute OM
      - Complicated CSOM (mastoiditis)
      - Malignancy in OM or OE.
    - - ??CSF otorrhoea
- - - - Wax
      - Swelling of the ear canal
      - Tympanic membrane
        
        Bilaging?
        
        Perforations?
        
        Colour (pinky white, translucent
        
        Light reflex?
  - - - Nystagmus
        
        Visual impairment
        
        Central disease
        
        Vestibular dysfunction
  - - - Abnormal? Cholesteatoma, OM, OE
      - Normal: neck exam, flexible nasoendoscoep