Temporomandibular joint herniation into the middle ear: A rare cause of mastication-induced tinnitus

A 75-year-old patient complained of mastication-induced clicking tinnitus on the left side, and otoendoscopic examination revealed that the left tympanic membraneTM was outwardly bulged by clenching her teeth. Temporal bone computed tomography demonstrated that the posteromedial bony wall of the gle...

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Main Authors:	Jin Woo Choi, MD, PhD, HyunJoo Nahm, MD, Jung Eun Shin, MD, PhD, Chang-Hee Kim, MD, PhD
Format:	Article
Language:	English
Published:	Elsevier 2020-02-01
Series:	Radiology Case Reports
Online Access:	http://www.sciencedirect.com/science/article/pii/S1930043319303590

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spelling	doaj-d55a094822184dadb74073eff2932c102020-11-25T01:17:08ZengElsevierRadiology Case Reports1930-04332020-02-01152125127Temporomandibular joint herniation into the middle ear: A rare cause of mastication-induced tinnitusJin Woo Choi, MD, PhD0HyunJoo Nahm, MD1Jung Eun Shin, MD, PhD2Chang-Hee Kim, MD, PhD3Department of Radiology, Konkuk University Medical Center, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Republic of KoreaDepartment of Otorhinolaryngology-Head and Neck Surgery, Konkuk University Medical Center, Research Institute of Medical Science, Konkuk University School of Medicine, 120-1 Neungdong-ro (Hwayang-dong), Gwangjin-gu, Seoul, Republic of Korea, 05030, Seoul, Republic of KoreaDepartment of Otorhinolaryngology-Head and Neck Surgery, Konkuk University Medical Center, Research Institute of Medical Science, Konkuk University School of Medicine, 120-1 Neungdong-ro (Hwayang-dong), Gwangjin-gu, Seoul, Republic of Korea, 05030, Seoul, Republic of KoreaDepartment of Otorhinolaryngology-Head and Neck Surgery, Konkuk University Medical Center, Research Institute of Medical Science, Konkuk University School of Medicine, 120-1 Neungdong-ro (Hwayang-dong), Gwangjin-gu, Seoul, Republic of Korea, 05030, Seoul, Republic of Korea; Corresponding author.A 75-year-old patient complained of mastication-induced clicking tinnitus on the left side, and otoendoscopic examination revealed that the left tympanic membraneTM was outwardly bulged by clenching her teeth. Temporal bone computed tomography demonstrated that the posteromedial bony wall of the glenoid was partially dehiscent, allowing herniation of soft tissue contents of temporomandibular joint into the middle ear. Increased middle ear pressure due to soft tissue herniation can induce left tympanic membrane bulging and accompanying clicking tinnitus. Herniation of temporomandibular joint soft tissue into the middle ear should be considered as a differential diagnosis when clicking tinnitus is evoked by mastication. Keywords: Tinnitus, Mastication, Temporomandibular joint, Middle ear, Foramen of Huschkehttp://www.sciencedirect.com/science/article/pii/S1930043319303590
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Jin Woo Choi, MD, PhD HyunJoo Nahm, MD Jung Eun Shin, MD, PhD Chang-Hee Kim, MD, PhD
spellingShingle	Jin Woo Choi, MD, PhD HyunJoo Nahm, MD Jung Eun Shin, MD, PhD Chang-Hee Kim, MD, PhD Temporomandibular joint herniation into the middle ear: A rare cause of mastication-induced tinnitus Radiology Case Reports
author_facet	Jin Woo Choi, MD, PhD HyunJoo Nahm, MD Jung Eun Shin, MD, PhD Chang-Hee Kim, MD, PhD
author_sort	Jin Woo Choi, MD, PhD
title	Temporomandibular joint herniation into the middle ear: A rare cause of mastication-induced tinnitus
title_short	Temporomandibular joint herniation into the middle ear: A rare cause of mastication-induced tinnitus
title_full	Temporomandibular joint herniation into the middle ear: A rare cause of mastication-induced tinnitus
title_fullStr	Temporomandibular joint herniation into the middle ear: A rare cause of mastication-induced tinnitus
title_full_unstemmed	Temporomandibular joint herniation into the middle ear: A rare cause of mastication-induced tinnitus
title_sort	temporomandibular joint herniation into the middle ear: a rare cause of mastication-induced tinnitus
publisher	Elsevier
series	Radiology Case Reports
issn	1930-0433
publishDate	2020-02-01
description	A 75-year-old patient complained of mastication-induced clicking tinnitus on the left side, and otoendoscopic examination revealed that the left tympanic membraneTM was outwardly bulged by clenching her teeth. Temporal bone computed tomography demonstrated that the posteromedial bony wall of the glenoid was partially dehiscent, allowing herniation of soft tissue contents of temporomandibular joint into the middle ear. Increased middle ear pressure due to soft tissue herniation can induce left tympanic membrane bulging and accompanying clicking tinnitus. Herniation of temporomandibular joint soft tissue into the middle ear should be considered as a differential diagnosis when clicking tinnitus is evoked by mastication. Keywords: Tinnitus, Mastication, Temporomandibular joint, Middle ear, Foramen of Huschke
url	http://www.sciencedirect.com/science/article/pii/S1930043319303590
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Temporomandibular joint herniation into the middle ear: A rare cause of mastication-induced tinnitus

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