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Deafness, autosomal dominant 3a(DFNA3A)

MedGen UID:
Concept ID:
Disease or Syndrome
Synonyms: DFNA3A; GJB2-Related DFNA 3 Nonsyndromic Hearing Loss and Deafness
Modes of inheritance:
Autosomal dominant inheritance
MedGen UID:
Concept ID:
Intellectual Product
Sources: HPO, OMIM, Orphanet
Autosomal dominant inheritance refers to genetic conditions that occur when a mutation is present in one copy of a given gene (i.e., the person is heterozygous).
Autosomal dominant inheritance (HPO, OMIM, Orphanet)
Gene (location): GJB2 (13q12.11)
OMIM®: 601544


Nonsyndromic hearing loss and deafness, DFNA3 is characterized by pre- or postlingual, mild-to-profound progressive high-frequency sensorineural hearing impairment. Affected individuals have no other associated medical findings. [from GeneReviews]

Clinical features

Sensorineural hearing loss
MedGen UID:
Concept ID:
Disease or Syndrome
Hearing loss resulting from damage to the COCHLEA and the sensorineural elements which lie internally beyond the oval and round windows. These elements include the AUDITORY NERVE and its connections in the BRAINSTEM.

Term Hierarchy

CClinical test,  RResearch test,  OOMIM,  GGeneReviews,  VClinVar  

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