# Cholesteatoma

- Category: chronic
- Review status: reviewed (every claim checked against a document named on this page)
- Sources: ICPC-3 (WONCA International Classification of Primary Care, 3rd edition) class HD05.00 - condition scope only, no dose · Middle Ear Cholesteatoma - StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK448108/ · No dose - referral pathway, no medicine given in primary care
- Verified date: 2026-08

## Verified against

- No dose - referral pathway, no medicine given in primary care

## Treatment metadata

- No drug therapy in primary care (Referral & Advice)

## Complete treatment card

```text
CHOLESTEATOMA
Sources: ICPC-3 (WONCA International Classification of Primary Care, 3rd edition) class HD05.00 -
         condition scope only, no dose · Middle Ear Cholesteatoma - StatPearls -
         https://www.ncbi.nlm.nih.gov/books/NBK448108/ · No dose - referral pathway, no medicine
         given in primary care
Review status: REVIEWED against the source listed above  (2026-08)

IS IT THIS? - reference only, to read alongside your own examination
  SYMPTOMS - what the patient reports (6)
    - Painless ear drainage, either ongoing or coming and going, is the textbook presentation
    - The condition affects only one ear in about 85% of cases
    - Hearing loss can occur, but how bad it is can be hard to judge because the small ear bones may
      be disrupted  [hearing loss]
    - Dizziness is a worrying complaint that can mean the ossicles have eroded into the inner ear,
      forming a fistula  [dizziness · fistula]
    - Facial weakness shows up in roughly 1 to 3.4% of patients  [facial weakness]
    - History-taking should cover whether ear symptoms are one- or two-sided, and any past ear
      infections treated with antibiotics
  SIGNS - what you find (5)
    - On otoscopy the classic finding is a white pearly or yellow mass sitting in a retracted
      pocket, usually toward the back and top of the eardrum
    - Foul-smelling white or yellow drainage in the canal can hide the underlying lesion on exam
    - Suctioning discharge under the microscope can show an eardrum hole, whether the ossicles are
      intact, and any mastoid bone erosion
    - Granular polyps seen on exam may be attached to the ossicles or the facial nerve and need
      careful handling  [polyp]
    - Facial movement is checked and recorded as a standard part of the exam
  TESTS (8)
    - Diagnosis rests mainly on history, exam, hearing tests, and imaging - lab work and biopsy are
      usually not needed
    - Hearing testing before and after surgery covers air and bone conduction, speech thresholds and
      discrimination, tympanometry, and reflexes
    - CT scanning before surgery may be skipped unless the diagnosis or extent is unclear, the
      anatomy is uncertain, or a birth anomaly such as atresia is suspected
    - A thin-cut, non-contrast temporal bone CT is the preferred scan for finding bone defects,
      though it can struggle to tell apart granulation tissue, keratin debris, and fluid
    - On T2-weighted and high b-value diffusion MRI sequences, the lesion shows up bright
    - On plain unenhanced T1 MRI, the lesion looks the same brightness as surrounding tissue
    - MRI is considered a must when there is dural involvement, an abscess, brain herniation into
      the mastoid, inner-ear or facial nerve inflammation, sinus clot, or meningitis
    - Pairing temporal bone CT with diffusion MRI can sharpen both sensitivity and specificity of
      the workup
  IF NOT THIS - what else fits (2)
    - Other ear infections to weigh include acute or chronic suppurative otitis media, malignant
      otitis externa, fluid behind the drum, and tympanosclerosis
    - Structural and granulomatous mimics include a middle ear bone growth, a perforated eardrum,
      cholesterol granuloma, granulomatosis with polyangiitis, histiocytosis, tuberculosis-type
      infection, or rare temporal bone cancer
  Source  StatPearls "Middle Ear Cholesteatoma" - disease-level clinical article
  Status  traced to the source above

1. NO DRUG THERAPY IN PRIMARY CARE (REFERRAL & ADVICE)    [1st line]
   Adult    An abnormal skin growth in the middle ear that erodes bone and needs surgical removal;
            the GP can treat a secondarily infected, discharging ear while arranging ENT referral,
            but cannot treat the underlying disease. - Refer, with advice
   Peds     Children follow the same pathway: recognise and refer. No primary-care medicine is
            implied.
   Source   No dose - referral pathway, no medicine given in primary care
   Why      An abnormal skin growth in the middle ear that erodes bone and needs surgical removal;
            the GP can treat a secondarily infected, discharging ear while arranging ENT referral,
            but cannot treat the underlying disease.
   Caution  No medicine is prescribed for this in primary care - this entry is for recognition and
            referral. Anything given is decided by the service it is referred to.
            RED FLAG - Facial weakness, worsening vertigo or hearing loss, or signs of intracranial
            spread such as severe headache, fever or neck stiffness: refer urgently.

Prices are indicative (dataset snapshot 2026-06); verify with the pharmacy.
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