Attic Retraction Pocket Of Tympanic Membrane

Retraction pockets a retraction pocket is an invagination of the tympanic membrane. One can describe a retraction pocket as a condition where part of the tympanic membrane is drawn towards the middle ear space and lies deeper than a healthy part. A retraction pocket seen in the attic or posterosuperior quadrant of a tympanic membrane is the hallmark of an acquired cholesteatoma.