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Deafness, autosomal recessive 21(DFNB21)

MedGen UID:
355030
Concept ID:
C1863655
Disease or Syndrome
Synonyms: DFNB21; DFNB21 Nonsyndromic Hearing Loss and Deafness
Modes of inheritance:
Autosomal recessive inheritance
MedGen UID:
141025
Concept ID:
C0441748
Intellectual Product
Sources: HPO, OMIM, Orphanet
A mode of inheritance that is observed for traits related to a gene encoded on one of the autosomes (i.e., the human chromosomes 1-22) in which a trait manifests in homozygotes. In the context of medical genetics, autosomal recessive disorders manifest in homozygotes (with two copies of the mutant allele) or compound heterozygotes (whereby each copy of a gene has a distinct mutant allele).
Autosomal recessive inheritance (HPO, OMIM, Orphanet)
 
Gene (location): TECTA (11q23.3)
OMIM®: 603629

Disease characteristics

Excerpted from the GeneReview: Deafness and Hereditary Hearing Loss Overview
Hereditary hearing loss and deafness may be conductive, sensorineural, or a combination of both; syndromic (associated with malformations of the external ear or other organs or with medical problems involving other organ systems) or nonsyndromic (no associated visible abnormalities of the external ear or any related medical problems); and prelingual (before language develops) or postlingual (after language develops). [from GeneReviews]
Full text of GeneReview (by section):
Summary  |  Definition  |  Causes  |  Evaluation Strategy  |  Genetic Counseling  |  Resources  |  Management  |  References  |  Chapter Notes
Authors:
Richard JH Smith  |  A Eliot Shearer  |  Michael S Hildebrand, et. al.   view full author information

Clinical features

Sensorineural hearing loss
MedGen UID:
9164
Concept ID:
C0018784
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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