Tympanosclerosis is a complication of recurrent middle ear infections. Wieling and Kerr reported a classification for tympanosclerosis.
Parameters:
(1) involvement of the malleus
(2) involvement of the malleus-incus complex
(3) involvement of the stapes
|
Malleus
|
Malleus-Incus Complex
|
Stapes
|
Type
|
|
may or may not be involved
|
not involved
|
not involved
|
I
|
|
involved
|
fixed
|
not involved
|
II
|
|
involved
|
mobile
|
fixed or absent
|
III
|
|
involved
|
fixed
|
fixed
|
IV
|
With all 3 there is involvement of the tympanic membrane.
