Tympanosclerosis

Condition of the ear involving scarring of the tympanic membrane

Tympanosclerosis is a condition characterized by the formation of hyaline and calcium deposits in the tympanic membrane (eardrum) and sometimes in the middle ear. This condition can lead to hearing loss and is often associated with chronic otitis media.

Signs and symptoms

Tympanosclerosis is often asymptomatic, but when symptoms do occur, they may include:

• Hearing loss, which can be conductive or mixed
• Tinnitus (ringing in the ears)
• A feeling of fullness in the ear

The degree of hearing loss depends on the extent and location of the tympanosclerotic plaques.

Causes

The exact cause of tympanosclerosis is not fully understood, but it is commonly associated with:

• Chronic otitis media
• Repeated ear infections
• Ear surgeries, such as myringotomy or tympanostomy

Pathophysiology

Tympanosclerosis involves the deposition of calcium and phosphate crystals in the connective tissue of the tympanic membrane and middle ear. This process leads to the formation of white, chalky plaques that can stiffen the eardrum and ossicles, impairing their ability to vibrate and conduct sound.

Diagnosis

Diagnosis of tympanosclerosis is typically made through:

• Otoscopy, where the plaques can be seen as white patches on the eardrum
• Audiometry to assess the degree of hearing loss
• Tympanometry to evaluate the mobility of the tympanic membrane

Treatment

There is no specific treatment for tympanosclerosis, but management focuses on addressing the symptoms:

• Hearing aids may be used to improve hearing
• Surgical intervention, such as tympanoplasty, may be considered in severe cases to remove the plaques and restore hearing

Prognosis

The prognosis for tympanosclerosis varies. In many cases, the condition remains stable and does not significantly affect hearing. However, in cases where hearing loss is significant, surgical intervention may be necessary.

Prevention

Preventive measures include:

• Prompt treatment of ear infections
• Avoidance of unnecessary ear surgeries

Related pages

• Otitis media
• Hearing loss
• Tympanoplasty

References

• Schuknecht, H. F. (1993). Pathology of the Ear. Philadelphia: Lea & Febiger.
• Bluestone, C. D., & Klein, J. O. (2007). Otitis Media in Infants and Children. Hamilton: BC Decker.

Tympanosclerosis visible on the tympanic membrane