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tympanosclerosis
sclerosis of the tympanic membrane
Etiology:
- otitis media
Pathology:
- hylanized collagen in the submucosa in lamellar arrangement
- mature fibrocytes betweem collagen fibers
- calcification may occur
Clinical manifestations:
- white, opaqe spot or spots may be seen on a background of a normally translucent tympanic membrane
- hearing is intact if limited to the tympanic membrane
- involvement of the malleus, incus, or stapes may result in conductive hearing loss (see otosclerosis)
Complications:
- tympanic membrane perforation
- otosclerosis
Related
otosclerosis
tympanic membrane (eardrum)
General
ear disease
sclerosis
References
- TYMPANOSCLEROSIS (Atlass of Head and Neck Pathology)
http://ckm.osu.edu/sitetool/sites/otolaryngologypublic/documents/atlas/Tympanosclerosis2.pdf