Endoscopic cartilage myringoplasty with the removal of a small rim of the external auditory canal to repair marginal perforations

摘要

Diagram of the marginal perforations not involving the malleus. Tympanic membrane perforation ( ); the perforation edges were refreshed and annulus was de-epithelialized, a small rim of EAC was removed ( ); the perichondrium was listed off of the cartilage over 2 mm on one end ( ); the uncover cartilage was partially removed ( ); the cartilage covered by perichondrium was placed medial to the remnant TM, the free perichondrium was placed lateral to the annulus and exposed EAC ( )