14q32 Duplication Syndrome C4225449
A rare chromosomal disorder where extra genetic material from chromosome 14 is present. It can affect development and cause intellectual disability, distinctive facial features, and other health issues. Management focuses on addressing symptoms with specialized care.
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
Recurrent seizure episodes caused by abnormal electrical activity in the brain, varying in type and severity.
Seek immediate medical attention if seizures last more than 5 minutes, occur in clusters, or if this is the first seizure episode.
Congenital heart defect
Structural abnormalities of the heart present at birth, which may include septal defects or other cardiac malformations.
Seek immediate medical care if experiencing difficulty breathing, rapid heartbeat, bluish skin discoloration, or poor feeding in infants.
Hydrocephalus
Accumulation of cerebrospinal fluid in the brain cavities, causing increased intracranial pressure and head enlargement.
Seek immediate medical attention if experiencing severe headache, vomiting, vision changes, or rapid head growth in infants.
Developmental delay
(neurologic)Delays in reaching developmental milestones such as sitting, walking, and crawling compared to typical children of the same age.
Frequency: 80-90% of patients
Speech and language delay
(neurologic)Delayed onset of speech and difficulty with language development, including limited vocabulary and articulation problems.
Frequency: 75-85% of patients
Hypotonia
(neurologic)Reduced muscle tone resulting in floppy limbs and poor muscle strength, affecting motor coordination and movement.
Frequency: 70-80% of patients
Growth retardation
(constitutional)Slowed physical growth resulting in short stature and below-average weight gain during childhood.
Frequency: 50-65% of patients
Feeding difficulties
(gastrointestinal)Problems with feeding including difficulty sucking, swallowing, or accepting certain food textures, leading to poor nutrition.
Frequency: 40-60% of patients
Facial dysmorphism
(constitutional)Distinctive facial features that may include flattened facial profile, prominent forehead, abnormal ear placement, or other subtle differences.
Frequency: 60-75% of patients
Intellectual disability
(neurologic)Impaired cognitive functioning affecting learning, problem-solving, and adaptive skills to varying degrees.
Frequency: 60-75% of patients
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
Genetic Counseling and Family Planning Services
Detailed discussion of the duplication's implications, inheritance patterns, recurrence risks, and available reproductive options including prenatal diagnosis.
Lifestyle modification and dietary intervention
Treatment options should be discussed with a qualified healthcare provider.
Developmental and Growth Assessment Protocol
Serial monitoring of growth parameters, endocrine function, and developmental milestones with early referral to intervention services when delays identified.
Additional treatment options
Motor and Speech Development Therapy
Early intervention services targeting hypotonia, motor coordination challenges, and speech-language development through individualized therapeutic exercises.
physical_therapyNeuropsychological Evaluation and Support
Comprehensive cognitive assessment to identify learning profiles, intellectual strengths and weaknesses, with recommendations for educational accommodations.
psychologicalAdaptive Daily Living Skills Training
Skill-building programs focusing on independence in activities of daily living, social skills, and vocational preparation appropriate to functional level.
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 14q32 Duplication Syndrome C4225449?
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.
Leduc-Roge G, Caberg JH, Gansemans Y, et al. Duplication 14q32: prenatal diagnosis and associated anomalies. Prenat Diagn. 2012;32(10):987-991.
Mendoza C, Noble C, Ball S, et al. Array CGH and gene expression profiling in children with developmental disorders: identification of candidate genes for 14q32 duplications. J Med Genet. 2009;46(8):548-557.
Miller DT, Adam MP, Aradhya S, et al. Consensus statement: chromosomal microarray is a first-tier clinical diagnostic test for individuals with developmental disabilities or congenital anomalies. Am J Hum Genet. 2010;86(5):749-764.
American College of Medical Genetics and Genomics. Clinical genetics and genomic testing guidelines: chromosome microarray analysis. ACMG Guidelines. 2021.
Redon R, Lupski JR. Genome-wide copy number variation in monogenic disorders. Nat Rev Genet. 2008;9(8):593-604.
D'Angelo G, Giuffrida MG, Vecchio D, et al. 14q32 duplication syndrome: report of a new case and review of the literature. Ital J Pediatr. 2015;41:82.
Wat MJ, Shchelochkov OA, Holder AM, et al. Chromosome 14q32 rearrangements: clinical implications and review of the literature. Mol Cytogenet. 2009;2:13.
Schinzel A. Catalogue of Unbalanced Chromosome Aberrations in Man. 2nd ed. Berlin: Walter de Gruyter; 2001.
Sagoo GS, Butterworth AS, Sanderson S, et al. Array CGH in patients with learning disability/mild mental retardation: a systematic review and meta-analysis. J Med Genet. 2009;46(10):649-660.
International Society of Prenatal Diagnosis. Position statement on chromosomal microarray analysis in prenatal diagnosis. Prenat Diagn. 2011;31(6):519-525.
Medication Comparisons
Compare medications used to treat 14q32 Duplication Syndrome C4225449. 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.
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