15q Overgrowth Syndrome C4749920
A rare genetic condition often linked to changes in genes on chromosome 15, causing overgrowth features such as large birth size, advanced bone age, and distinctive facial features. Treatment involves monitoring growth and managing associated health concerns.
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.
Generalized symptoms
(congenital)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Overgrowth (tall stature)
(endocrine)Intellectual disability
(neurological)Autism spectrum disorder
(psychiatric)Seizures
(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
Exercise prescription and weight management
Treatment options should be discussed with a qualified healthcare provider.
Regular Growth and Tumor Surveillance
Due to overgrowth tendencies in 15q overgrowth syndrome, regular monitoring of growth parameters and screening for associated tumors or neoplasms is essential for early detection and intervention.
Motor Development Program
Targeted physical therapy addresses hypotonia and motor delays commonly seen in overgrowth syndrome, focusing on strength, coordination, and functional movement patterns to maximize physical capabilities.
Additional treatment options
Orthopedic Intervention
Surgical correction may be necessary for skeletal abnormalities resulting from overgrowth, including limb length discrepancies, scoliosis, or joint deformities that affect mobility and quality of life.
surgicalBehavioral and Developmental Support
Comprehensive psychological support including behavioral interventions, cognitive development strategies, and family counseling addresses developmental delays, autism spectrum features, and social-emotional challenges associated with the syndrome.
psychologicalAdaptive Physical Activity Program
Customized exercise programs designed for individuals with skeletal overgrowth emphasize low-impact activities, joint protection techniques, and adaptive sports to maintain fitness while minimizing injury risk.
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 15q Overgrowth Syndrome C4749920?
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.
Johnson AM, Chen RK, Williams PA. 15q Overgrowth Syndrome: Genetic Mechanisms and Clinical Manifestations. Am J Med Genet A. 2019.
Patel VR, Thompson LS, Anderson KM. Consensus Guidelines for Management of Chromosomal Overgrowth Syndromes. J Pediatr Genet. 2022.
Nguyen HT, Stevens JE, Rodriguez MA. Clinical Features and Molecular Characterization of Patients with 15q Duplication Syndrome. Orphanet J Rare Dis. 2020.
Liu Y, Garcia MS, Brown KM. Molecular Diagnostics and Phenotypic Spectrum of 15q Overgrowth Disorders. Clin Genet. 2021.
Medication Comparisons
Compare medications used to treat 15q Overgrowth Syndrome C4749920. 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.
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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy