Tan Neil C-W, Wilson Alan, Buckland Jonathan
Department of Otolaryngology, Queen Alexandra Hospital, Portsmouth, PO6 3LY, United Kingdom.
Br J Oral Maxillofac Surg. 2009 Mar;47(2):135-7. doi: 10.1016/j.bjoms.2008.07.204. Epub 2008 Oct 9.
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.
颞下颌关节（TMJ）与外耳道（EAM）密切相关。关节疝入EAM继发于肿瘤、创伤、炎症和发育问题[Conover GL, Crammond RJ. 下颌骨创伤导致的鼓室板骨折。《口腔颌面外科杂志》1985年；43:292 - 4；Ali TS, Rubinstein JT. 颞下颌关节类风湿性关节炎伴疝入外耳道。《耳鼻喉科年鉴》2000年；109:177 - 9]。良性坏死性外耳道炎（BNOE）是一种罕见疾病，其特征为鼓室板无血管坏死，已被描述为单纯外耳道炎的后遗症。[Wormald PJ. 良性坏死性外耳道炎的外科治疗。《耳鼻喉科杂志》1994年；108:101 - 5。]我们报告一例导致TMJ关节囊向后疝入EAM的BNOE病例。
