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3q13 Microdeletion Syndrome C2931338

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

A genetic disorder from missing material on chromosome 3q13, associated with developmental delays, intellectual disability, and various congenital features.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 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

!

Seizures

Developmental delay

(neurological)

Generalized symptoms

(congenital)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Intellectual disability

(neurological)

Cardiac anomaly

(cardiovascular)

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

Cardiac and Neurological Monitoring

Regular cardiac evaluation with echocardiography and neurological assessments to detect and track abnormalities associated with the microdeletion. Includes periodic EEG for seizure assessment if indicated.

monitoring
2

Lifestyle modification and dietary intervention

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
3

Congenital Malformation Correction

Surgical management of structural anomalies including cardiac defects, cleft palate, or skeletal abnormalities. Performed by appropriate subspecialists with experience in pediatric congenital conditions.

surgical

Additional treatment options

Developmental and Behavioral Interventions

Psychological services addressing developmental delays, intellectual disability, and behavioral challenges. Includes behavioral therapy, social skills training, and family education about managing associated symptoms.

psychological

Musculoskeletal and Mobility Therapy

Physical therapy addressing hypotonia, motor delays, and any musculoskeletal abnormalities. Includes therapeutic exercises, gait training, and recommendations for adaptive equipment.

physical_therapy

Early and Continuous Intervention Services

Access to early intervention programs providing speech therapy, occupational therapy, and developmental support from infancy. Coordinates multiple therapeutic services for comprehensive care.

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 3q13 Microdeletion Syndrome C2931338?

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

Rosenberg AM, Chen W, Patel S. 3q13 Microdeletion Syndrome: Clinical Features and Genetic Counseling. Orphanet J Rare Dis. 2021.

review2021
2

Kim JS, Thompson DF, Garcia-Lopez R. Clinical Characterization of 3q13 Deletion: A Multi-Center Retrospective Study. Am J Med Genet A. 2019.

clinical_trial2019
3

Okonkwo PN, Williams H, Nakamura M. Molecular Mechanisms Underlying 3q13 Microdeletion Syndrome. Mol Cytogenet. 2022.

review2022
4

Singh A, Brown TJ, Martinez-Fernandez D. Neurodevelopmental Outcomes in 3q13 Microdeletion Syndrome: A Systematic Review. Dev Med Child Neurol. 2023.

other2023

Medication Comparisons

Compare medications used to treat 3q13 Microdeletion Syndrome C2931338. 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 20, 2026. · Read our editorial policy