semicircular canal dehiscence syndrome
Findings
No curated finding names semicircular canal dehiscence syndrome yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Semicircular canal dehiscence (SCD) syndrome is a rare otorhinolaryngologic disease characterized by the uni- or bilateral dehiscence of the bone(s) overlying the superior (most common), lateral or posterior semicircular canal(s). Patients present audiological (autophony, aural fullness, conductive hearing loss, pulsatile tinnitus) and/or vestibular symptoms (sound or pressure-evoked oscillopsia or vertigo, characteristic vertical-torsional eye movements), depending on which semicircular canal is affected. Posterior SCD syndrome is associated with high-riding jugular bulb and fibrous dysplasia, while lateral SCD syndrome is associated with chronic otitis media and cholesteatoma, with or without audiological and vestibular symptoms.
Definition from the Mondo Disease Ontology (MONDO:0018484), read 2026-09-29. CC BY 4.0.
Where it sits
- A kind of
Other names
4 names
Resolves to: semicircular canal dehiscence syndrome
- Also called
- Minor's syndromeMinorbs syndromeSCD syndromeSuperior Semicircular Canal Dehiscence