Prise en charge initiale de l’otite externe nécrosante : les erreurs à éviter

The temporomandibular joint (TMJ) is intimately related to the external auditory meatus (EAM). Herniation of the joint into the EAM occurs secondary to neoplasia, trauma, inflammation and developmental problems [Conover GL, Crammond RJ. Tympanic plate fracture from mandibular trauma. J Oral Maxillofac Surg 1985;43:292–4; Ali TS, Rubinstein JT. Rheumatoid arthritis of the temporomandibular joint with herniation into the external auditory canal. Ann Otol Rhinol Laryngol 2000;109:177–9]. Benign necrotising otitis externa (BNOE) is an uncommon condition characterized by avascular necrosis of the tympanic plate that has been described as a sequela of simple otitis externa. [Wormald PJ. Surgical management of benign necrotizing otitis externa. J Laryngol Otol 1994;108:101–5.] We present a case of BNOE that resulted in a posterior herniation of the TMJ capsule into the EAM.