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11 Cards in this Set

  • Front
  • Back
Acquired cholesteatoma represents ingrowth of ____ through the ____ with deposition of ___ and ____ in the middle ear.
squamous epithelium, tympanic membrane, cells, keratin debris
Acquired cholesteatoma forms a mass-like lesion in the middle ear that erodes ____ and ____.
Most common type of acquired cholesteatoma?
Pars flaccida cholesteatoma
Pars flaccida cholesteatoma begins in _____?
Prussak's space, therefore eroding scutum
Pars flaccida cholesteatoma begins in Prussak's space and extends to _____,_______, and mastoid antrum.
Epitympanum, aditus ad antrum, and mastoid antrum
Which acquired cholesteatoma begins in the mesotympanum?
Pars tensa cholesteatomas
Pars tensa cholesteatomas begin in the mesotympanum, involve the _____, and erode the _____.
Sinus tympani, ossicles
Complication include dehiscence of ____?
Tegmen tympani
Complication include erosion of labyrinth with creation of ___?
perilymphatic fistula
Other complications include ___ nerve palsy and air in the ___.
Facial, labyrinth
Acquired cholesteatomas may be bright on ___?