Korean J Audiol.  2013 Sep;17(2):90-93. 10.7874/kja.2013.17.2.90.

A Case of Spontaneous Temporomandibular Joint Herniation into the External Auditory Canal with Clicking Sound

Affiliations
  • 1Department of Otorhinolaryngology-Head and Neck Surgery, Kyung Hee University Hospital at Gangdong, Seoul, Korea. otorhino512@naver.com

Abstract

A bony defect of the external auditory canal (EAC) and herniation of the temporomandibular joint (TMJ) can be caused by tumorous conditions, inflammation, trauma, and otologic procedures. Spontaneous TMJ herniation into the EAC can be caused by a congenital bony defect known as patent Huschke's foramen, which is a very rare condition. In our case, an objective clicking sound was produced when the patient opened his mouth. A protruding mass was found in the anterior wall of the EAC during mouth closing, and herniation of the TMJ was confirmed with computed tomography. Therefore, we thought the clicking sound of our case could have resulted from spontaneous TMJ herniation through the patent foramen of Huschke.

Keyword

Huschke's foramen; Temporomandibular joint; Tinnitus

MeSH Terms

Aminocaproic Acids
Ear Canal
Humans
Inflammation
Mouth
Temporomandibular Joint
Tinnitus
Aminocaproic Acids
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