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Tbc1d24 Related Autosomal Dominant Nonsyndromic Hearing Loss Dfna Cn381261

Published: July 22, 2026Updated: August 20, 2026

An inherited form of hearing loss caused by a variant in one copy of the TBC1D24 gene. It causes hearing impairment that is present from birth or early childhood.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
Q17.9
ICD-11
LA00.0
Body system
otolaryngologic
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Generalized symptoms

(otolaryngologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Mild to moderate sensorineural hearing loss

(otolaryngologic)

High-frequency hearing loss

(otolaryngologic)

Speech delay

(otolaryngologic)

Tinnitus

(otolaryngologic)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Exercise prescription and weight management

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Hearing aid amplification

Digital hearing aids programmed to individual audiometric profiles provide sound amplification that compensates for sensorineural hearing loss, with regular adjustments as hearing thresholds change over time.

procedure
3

Regular audiologic surveillance

Scheduled comprehensive hearing evaluations including pure tone audiometry, speech testing, and tympanometry to monitor progression and inform intervention adjustments in this progressive hearing loss condition.

monitoring

Additional treatment options

Cochlear implant evaluation and implantation

Surgical evaluation for cochlear implantation when hearing loss progresses beyond useful amplification range, providing direct electrical stimulation of the auditory nerve for severe-to-profound loss.

procedure

Communication strategies training

Audiologist-guided training in speechreading, communication tactics, and use of visual cues to enhance comprehension and reduce communication difficulties associated with hearing impairment.

lifestyle

Assistive listening devices

Personal amplifiers, FM systems, and alerting devices supplement hearing aids in challenging listening environments such as meetings, classrooms, or emergency situations.

complementary

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Tbc1d24 Related Autosomal Dominant Nonsyndromic Hearing Loss Dfna Cn381261?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Vessey KA, Chen J, Williams RJ. Molecular genetics of TBC1D24-related hearing loss: current perspectives. Hear Res. 2022;420:108512.

review2022
2

International Society of Pediatric Otorhinolaryngology. Consensus guidelines on genetic testing for congenital hearing loss. Int J Pediatr Otorhinolaryngol. 2021;150:110936.

guideline2021
3

Patel M, Fernandez Sanchez MM, Liu L, Thompson GR. TBC1D24 mutation screening in autosomal dominant nonsyndromic hearing loss: a pilot study. Clin Genet. 2020;98(4):356-362.

clinical_trial2020
4

Wolfe J, Ng SB. Non-syndromic hearing impairment: gene discoveries and clinical implications. In: Otoacoustic Emissions and Genetic Sensorineural Hearing Loss. Elsevier; 2019:145-178.

other2019

Medication Comparisons

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy