Otolaryngology Book

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Cholesteatoma

Aka: Cholesteatoma
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  1. Pathophysiology
    1. Benign squamous metaplasia of middle ear epithelium
      1. TM epithelium retracts into mastoid air cells
      2. Mass gradually expands and keratinizes
      3. Forms epithelial inclusion cyst
      4. Contains Cholesterol crystals and keratinous debris
    2. Results in destruction of middle ear ossicles
      1. Conductive Hearing Loss
  2. Cause
    1. Congenital Cholesteatoma
    2. Acquired Cholesteatoma
      1. Chronic Otitis Media
      2. Tympanic Membrane Rupture
  3. Symptoms
    1. Ear fullness
    2. Ear Pain
    3. Headache
    4. Hearing Loss
    5. Chronic suppurative discharge from middle ear
      1. Via perforated Tympanic Membrane
  4. Signs
    1. Middle ear deafness
    2. Otoscope Exam
      1. Pearly gray middle ear mass
  5. Radiology
    1. Bony Erosion and enlargement of middle ear
    2. Mastoid process with air cell opacification
  6. Management
    1. Surgical excision of Cholesteatoma
    2. Second look procedure may be scheduled at 6 months
  7. Complications
    1. Conductive Hearing Loss
    2. Mastoiditis (most common cause)

Cholesteatoma (C0008373)

Definition (CSP) non-neoplastic keratinizing mass with stratified squamous epithelium, frequently occurring in the meninges, central nervous system, bones of the skull, and most commonly in the middle ear and mastoid region.
Definition (MSH) A non-neoplastic mass of keratin-producing squamous EPITHELIUM, frequently occurring in the MENINGES; bones of the skull, and most commonly in the MIDDLE EAR and MASTOID region. Cholesteatoma can be congenital or acquired. Cholesteatoma is not a tumor nor is it associated with high CHOLESTEROL.
Concepts Disease or Syndrome (T047)
MSH D002781
ICD9 385.30
ICD10 H71.9, H71.90
SnomedCT 194338004, 575006, 363668000, 155244001, 267766007
English Cholesteatomas, Cholesteatoma, NOS, Cholesteatoma, unspecified, Unspecified cholesteatoma, cholesteatoma (diagnosis), cholesteatoma, CHOLESTEATOMA, Cholesteatoma NOS, Unspecified cholesteatoma (morphologic abnormality), Unspecified cholesteatoma, unspecified ear, Cholesteatoma [Disease/Finding], cholesteatomas, Cholesteatoma, Epidermoid cholesteatoma, Cholesteatoma (disorder), Cholesteatoma (morphologic abnormality)
Dutch cholesteatoom, niet-gespecificeerd, cholesteatoom, Cholesteatoom
French Cholestéatome, non précisé, Cholestéatome
German Cholestatom, unspezifisch, Cholestatom, Cholesteatom
Italian Colesteatoma, non specificato, Colesteatoma
Portuguese Colesteatoma NE, Colesteatoma
Spanish Colesteatoma no especificado, Cholesteatoma, colesteatoma (anomalía morfológica), colesteatoma (trastorno), colesteatoma epidermoide, colesteatoma, Colesteatoma
Japanese 真珠腫, 詳細不明の真珠腫, ｼｮｳｻｲﾌﾒｲﾉｼﾝｼﾞｭｼｭ, ｼﾝｼﾞｭｼｭ
Swedish Kolesteatom
Czech cholesteatom, Cholesteatom, Cholesteatom, blíže neurčený
Finnish Kolesteatooma
Russian OPUKHOL' ZHEMCHUZHNAIA, KHOLESTEATOMA, ОПУХОЛЬ ЖЕМЧУЖНАЯ, ХОЛЕСТЕАТОМА
Croatian KOLESTEATOM
Polish Perlak
Hungarian Cholesteatoma, Nem meghatározott cholesteatoma
Sources
Derived from the NIH UMLS (Unified Medical Language System)


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