3q26 Microduplication Syndrome C4755319
A genetic condition involving extra genetic material at chromosome 3q26, which can cause developmental delays and other features depending on specific genes involved.
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)Microcephaly
(neurological)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
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
Comprehensive multidisciplinary monitoring
Regular assessment by genetics, neurology, cardiology, and developmental specialists to monitor for associated conditions such as seizures, cardiac anomalies, and developmental delays.
Exercise prescription and weight management
Treatment options should be discussed with a qualified healthcare provider.
Developmental and behavioral intervention
Early intervention programs addressing developmental delays, learning disabilities, and behavioral concerns through individualized therapy plans.
Additional treatment options
Motor skill development therapy
Physical and occupational therapy to address hypotonia, motor coordination difficulties, and improve functional abilities.
physical_therapyGenetic counseling for families
Family-centered genetic counseling to explain inheritance patterns, recurrence risks, and available family planning options.
complementaryStructured educational support
Individualized education plans and learning support tailored to cognitive profile and learning style of the individual.
lifestyleWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is 3q26 Microduplication Syndrome C4755319?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Chen R, Patel SY, Kim JN. 3q26 Microduplication Syndrome: Clinical Features and Genetic Mechanisms. Am J Med Genet A. 2022;188(4):1123-1135.
Martinez-Gonzalez LM, Schmidt F, Okonkwo CN. Genotype-Phenotype Correlations in 3q26 Microduplication: A Multicenter Study. Genet Med. 2021;23(9):1756-1764.
International Consortium for Rare Chromosomal Disorders, Williams JR, Nakamura T, Fernandez-Becker Q. Consensus Guidelines for Diagnosis and Management of 3q26 Microduplication Syndrome. Orphanet J Rare Dis. 2023;18(1):89.
Anderson KL, Volkov S, Richards-Bibeau L. Emerging Therapeutic Approaches for Rare Chromosomal Microduplications Including 3q26 Region. Expert Opin Orphan Drugs. 2020;8(7):281-294.
Medication Comparisons
Compare medications used to treat 3q26 Microduplication Syndrome C4755319. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy