MeSH Browser

MeSH Heading: Semicircular Canal Dehiscence
Tree Number(s): C09.218.568.900.663
Unique ID: D000084322
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D000084322
Scope Note: A vestibular disorder caused by a pathologic third window into the BONY LABYRINTH (in contrast to the normal ROUND WINDOW OF EAR and the OVAL WINDOW OF EAR). It can present with autophony, sound- or pressure-induced VERTIGO, and chronic disequilibrium among other vestibulocochlear symptoms.(From: Semin Neurol. 2020 Jan 27; 48: 58-65.)
Entry Term(s): Dehiscence of the Lateral Semicircular Canal; Dehiscence of the Posterior Semicircular Canal; Dehiscence of the Semicircular Canal; Dehiscence of the Superior Semicircular Canal; Lateral Canal Dehiscence Syndrome; Lateral Semicircular Canal Dehiscence; Lateral Semicircular Canal Dehiscence Syndrome; Posterior Canal Dehiscence Syndrome; Posterior Semicircular Canal Dehiscence; Posterior Semicircular Canal Dehiscence Syndrome; Semicircular Canal Dehiscence Syndrome; Superior Canal Dehiscence Syndrome; Superior Semicircular Canal Dehiscence; Superior Semicircular Canal Dehiscence Syndrome; Third Window Syndrome
Previous Indexing: Labyrinth Diseases (1999-2020)
Public MeSH Note: 2021
History Note: 2021
Date Introduced: 2021/01/01
Last Updated: 2026/01/01

Allowable Qualifiers: blood (BL)

cerebrospinal fluid (CF)

chemically induced (CI)

classification (CL)

complications (CO)

congenital (CN)

diagnosis (DI)

diagnostic imaging (DG)

diet therapy (DH)

drug therapy (DT)

economics (EC)

embryology (EM)

enzymology (EN)

epidemiology (EP)

ethnology (EH)

etiology (ET)

genetics (GE)

history (HI)

immunology (IM)

metabolism (ME)

microbiology (MI)

mortality (MO)

nursing (NU)

parasitology (PS)

pathology (PA)

physiopathology (PP)

prevention & control (PC)

psychology (PX)

radiotherapy (RT)

rehabilitation (RH)

surgery (SU)

therapy (TH)

urine (UR)

veterinary (VE)

virology (VI)

Semicircular Canal Dehiscence MeSH Descriptor Data 2026