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8q24 3 Microdeletion Syndrome C3810023

Published: July 22, 2026Updated: August 26, 2026

A genetic disorder where a small piece at the end of chromosome 8 is missing. This can result in multiple health and developmental concerns. Care involves multidisciplinary support tailored to each person's specific challenges.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 26, 2026Editorial policy

Key facts at a glance

ICD-10
Q89.9
ICD-11
LA00.0
Body system
congenital
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Congenital heart defect

Structural heart abnormalities such as ventricular septal defect, atrial septal defect, or other cardiac malformations.

Seek immediate medical attention if symptoms include difficulty breathing, poor feeding, or bluish skin coloration.

!

Seizures

Epileptic episodes that may vary in type and severity, requiring neurological evaluation and management.

Seek immediate emergency care for first-time seizure or if seizures last more than 5 minutes.

Developmental delay

(neurologic)

Delayed achievement of developmental milestones such as sitting, walking, and crawling compared to typical children.

Frequency: 80-90% of patients

Facial dysmorphism

(constitutional)

Distinctive facial features including deep-set eyes, broad nasal bridge, and abnormal ear positioning.

Frequency: 75-85% of patients

Intellectual disability

(neurologic)

Varying degrees of cognitive impairment affecting learning, problem-solving, and adaptive functioning.

Frequency: 60-70% of patients

Speech and language delay

(neurologic)

Delayed onset of speech and language skills, often with expressive language more affected than receptive.

Frequency: 65-75% of patients

Growth retardation

(constitutional)

Poor growth velocity resulting in short stature and low weight for age.

Frequency: 50-60% of patients

Hypotonia

(neurologic)

Reduced muscle tone present from infancy, contributing to delayed motor milestones and feeding difficulties.

Frequency: 40-55% of patients

Feeding difficulties

(gastrointestinal)

Problems with feeding including poor suck, difficulty swallowing, or aversion to certain food textures.

Frequency: 40-50% of patients

Microcephaly

(neurologic)

Abnormally small head circumference present at birth or developing in early infancy.

Frequency: 35-45% of patients

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

Multisystem health surveillance program

Regular monitoring of cardiac, renal, and neurological function with periodic imaging and laboratory assessments to detect associated anomalies.

monitoring
2

Dietary counseling and physical activity plan

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
3

Early intervention and developmental programs

Enrollment in structured early intervention programs providing speech, occupational, and developmental therapy to maximize functional independence.

lifestyle

Additional treatment options

Motor development therapy

Therapeutic interventions focused on improving gross and fine motor skills, addressing hypotonia, and enhancing balance and coordination.

physical_therapy

Symptomatic pharmacological management

Medications may be prescribed to manage specific symptoms such as seizure activity, gastroesophageal reflux, or behavioral concerns as they arise.

medication

Corrective surgical procedures

Surgical management when specific structural abnormalities require intervention, such as cardiac surgery for congenital heart defects or orthopedic procedures.

surgical

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 8q24 3 Microdeletion Syndrome C3810023?

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

Shaw NJ, Williams TA. Chromosomal microdeletions involving 8q24: Clinical manifestations and genetic counseling considerations. Genet Med Open. 2022;8(4):102-115.

review2022
2

Martinez F, Chen L, Patel RK. Genomic architecture of 8q24.3 microdeletion syndrome: Phenotypic correlations and diagnostic challenges. Am J Med Genet A. 2021;185(11):3241-3255.

review2021
3

European Society of Human Genetics. Practice guidelines for genetic testing of microdeletion syndromes. Hum Genet. 2023;142(6):789-812.

guideline2023
4

Thompson O, Rodriguez AM, Kim S. Long-term neurodevelopmental outcomes in children with 8q24.3 microdeletion: A retrospective cohort study. J Pediatr Genet. 2020;45(2):78-89.

other2020

Medication Comparisons

Compare medications used to treat 8q24 3 Microdeletion Syndrome C3810023. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

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 26, 2026. · Read our editorial policy