Cholesteatoma Therapy: Treatment and Surgery
Cholesteatoma therapy involves the surgical removal of an abnormal skin cell collection in the middle ear. The goal is complete elimination of the lesion and preservation of hearing.
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Cholesteatoma therapy involves the surgical removal of an abnormal skin cell collection in the middle ear. The goal is complete elimination of the lesion and preservation of hearing.
What Is a Cholesteatoma?
A cholesteatoma is a benign but locally destructive accumulation of squamous epithelium (keratinized skin cells) within the middle ear or petrous bone. Despite its name, it is not a true tumor but rather an abnormal growth of skin tissue in a location where it does not normally occur. If left untreated, a cholesteatoma can erode surrounding bone, the ossicular chain, and even structures of the inner ear or skull base.
Causes and Development
Cholesteatomas are classified as either primary (congenital) or secondary (acquired):
- Congenital cholesteatoma: Arises from an embryological developmental defect in which epithelial cells become trapped behind an intact eardrum.
- Acquired cholesteatoma: The most common form; typically develops as a result of chronic middle ear inflammation or negative middle ear pressure, causing retraction of the eardrum and accumulation of keratin layers within the middle ear space.
Symptoms
Typical signs and symptoms of a cholesteatoma include:
- Unilateral hearing loss
- Chronic, often foul-smelling ear discharge (otorrhoea)
- A feeling of pressure or pain in the ear
- Dizziness or vertigo (if the vestibular system is affected)
- Facial paralysis (if the facial nerve is damaged)
Diagnosis
Diagnosis is established through otoscopic examination of the ear canal and eardrum, supplemented by imaging studies such as CT (computed tomography) or MRI (magnetic resonance imaging) of the temporal bone to assess the extent of disease and detect potential complications.
Cholesteatoma Therapy
Surgical removal is the only effective treatment for a cholesteatoma. Conservative or medication-based approaches cannot stop its growth and are used only to control infection prior to the operation.
Surgical Techniques
The choice of surgical technique depends on the size, location, and extent of the cholesteatoma:
- Tympanoplasty: A reconstructive procedure to repair the eardrum and the ossicular chain. Typically used for limited or less invasive lesions.
- Mastoidectomy: Removal of diseased bone in the mastoid region. This includes the canal wall up (CWU) technique (preserving the posterior ear canal wall) and the canal wall down (CWD) technique (removing the posterior canal wall, creating an open mastoid cavity).
- Atticotomy / Attico-antrotomy: Targeted opening of the attic and antrum to remove localized cholesteatomas with minimal bone removal.
- Endoscopic ear surgery (EES): A minimally invasive technique using a thin endoscope to visualize difficult-to-reach areas of the middle ear. Increasingly used in modern ENT centers worldwide.
Goals of Surgery
- Complete removal of the cholesteatoma to prevent recurrence
- Eradication of infection and chronic inflammation
- Preservation or improvement of hearing (auditory rehabilitation)
- Prevention of life-threatening complications (e.g., meningitis, brain abscess)
Staged Surgical Approach
For extensive lesions, a staged (two-stage) surgical approach is often chosen: the cholesteatoma is removed in the first operation, while reconstruction of the ossicular chain (ossiculoplasty) is performed in a second procedure approximately 6 to 12 months later. This allows the surgeon to check for residual or recurrent disease before committing to final reconstruction.
Follow-Up and Recurrence Monitoring
Regular follow-up examinations with an ENT specialist are essential after surgery, as cholesteatomas have a recurrence rate of up to 30%. In addition to clinical checks, non-echo-planar diffusion-weighted MRI is increasingly used to detect residual or recurrent cholesteatoma non-invasively, avoiding the need for immediate revision surgery.
Complications
Untreated cholesteatomas can lead to serious complications, including:
- Complete hearing loss (deafness)
- Facial nerve injury causing facial paralysis
- Labyrinthitis (inflammation of the inner ear)
- Meningitis (inflammation of the meninges)
- Brain abscess or epidural empyema
References
- Jackler RK, Dherwan SS. - Cholesteatoma. In: Cummings Otolaryngology: Head and Neck Surgery, 7th Edition. Elsevier, 2021.
- Kuo CL. - Etiopathogenesis of acquired cholesteatoma: prominent theories and recent advances in biomolecular research. Laryngoscope. 2015;125(1):234-240. PubMed PMID: 25142499.
- Badr-El-Dine M, James AL, Panetti G, et al. - Endoscope exclusively for middle ear surgery. Otolaryngol Clin North Am. 2013;46(2):137-157. PubMed PMID: 23764813.
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Related search terms: Cholesteatoma Therapy + Cholesteatoma Treatment + Cholesteatoma Surgery