Retraction Pocket

The retraction pocket corresponds to a retraction of the tympanic membrane towards the inside of the middle ear. This condition is due to a ventilation problem of the middle ear secondary to Eustachian tube dysfunction or a ventilation problem between the mastoid and the middle ear. When the Eustachian tube is not working properly, a negative pressure is developed in the middle ear. This weakens the eardrum and attracts it inward.

The retraction pocket may be of varying severity. It may include part or the entire eardrum. It can stick to the bone at the bottom of the middle ear and the ossicles. Retraction pockets can slowly destroy the ossicles of the middle ear that transmit sound.

If the retraction pocket is stable and does not cause hearing loss, it can be observed and followed-up at the clinic. However, if it causes destruction of the ossicles or if it leads to a cholesteatoma, treatment becomes surgical.

A retraction pocket must be examined microscopically. A 3-D visualization, in both eyes is essential to assess its progress and stability.

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Anatomy and function of the ear
Definition
External Otitis
Otitis Media
Retraction Pockets
Cholesteatoma
Myringitis
Mastoiditis
Otosclerosis
Vestibular Schwannoma