3p Syndrome C4706503
A rare chromosomal disorder involving deletion of genetic material from chromosome 3. It causes distinctive facial features, growth delays, and intellectual disability. Care involves managing developmental and medical complications.
Key facts at a glance
- ICD-10
- Q89.9
- ICD-11
- LA00.0
- Body system
- congenital
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Seizures
Recurrent seizures or epilepsy due to abnormal brain activity.
Seek emergency care immediately if seizures occur or if seizure frequency increases suddenly.
Congenital heart defects
Structural heart abnormalities present at birth, such as ventricular septal defect or atrial septal defect.
Seek immediate medical attention if symptoms of heart failure develop such as rapid breathing or difficulty feeding.
Growth retardation
(constitutional)Failure to thrive and poor overall growth in height and weight during childhood.
Frequency: 90-95% of patients
Developmental delay
(neurologic)Significant delays in reaching developmental milestones such as sitting, walking, and speaking.
Frequency: 85-90% of patients
Hearing loss
(sensory)Partial or complete loss of hearing, which may be conductive or sensorineural.
Frequency: 25-35% of patients
Vision impairment
(sensory)Reduced visual acuity or eye abnormalities including strabismus and optic nerve atrophy.
Frequency: 20-30% of patients
Feeding difficulties
(gastrointestinal)Problems with feeding and swallowing, often requiring specialized feeding techniques or tubes.
Frequency: 40-50% of patients
Genitourinary abnormalities
(genitourinary)Kidney malformations or genital abnormalities including undescended testes or hypospadias.
Frequency: 15-20% 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
Early Intervention Programs
Structured early intervention services are crucial for children with 3p deletion syndrome to maximize developmental potential. These comprehensive programs combine multiple therapies in a coordinated approach during the critical early childhood developmental window.
Medication management with follow-up
Active treatment with regular monitoring by a healthcare provider is recommended.
Physical and Occupational Therapy
Physical therapy addresses hypotonia, motor delays, and coordination difficulties common in 3p syndrome, while occupational therapy focuses on daily living skills, fine motor abilities, and sensory integration to improve functional independence.
Additional treatment options
Behavioral and Developmental Psychology Support
Psychological support addresses behavioral challenges, social skill deficits, and emotional regulation difficulties that frequently accompany 3p deletion syndrome. Interventions include behavioral modification strategies and social skills training programs.
psychologicalMultisystem Medical Monitoring
Patients require regular monitoring for congenital anomalies including cardiac defects, renal abnormalities, and growth issues. Periodic echocardiograms, renal ultrasounds, and growth chart tracking are essential components of comprehensive care.
monitoringCommunication Augmentation Services
Speech and language therapy, including augmentative and alternative communication AAC devices, help patients with speech delays or apraxia. These tools support both receptive and expressive communication development.
complementaryWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is 3p Syndrome C4706503?
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.
Cavalli-Sforza LL, Bodmer WF. The Genetics of Human Populations. W.H. Freeman; 1971.
McKusick VA. Mendelian Inheritance in Man. Johns Hopkins University Press; 1998.
Scriver CR, et al. The Metabolic and Molecular Bases of Inherited Disease. McGraw-Hill; 2001.
Lupski JR. Structural variation in the human genome. N Engl J Med. 2007.
NIH Clinical Center. 3p- Syndrome Study. ClinicalTrials.gov; 2015.
American College of Medical Genetics and Genomics. Clinical Genetic Testing for Chromosomal Microarray. ACMG Guidelines; 2010.
Stankiewicz P, Lupski JR. Structural variation in the human genome: evolution, mechanism, and impact. Curr Opin Genet Dev. 2006.
International Society of Cytogenomic Nomenclature. Guidelines for Cytogenomic Nomenclature. Cytogenet Genome Res. 2020.
Cooper GM, et al. A copy number variation morbidity map of developmental delay. Nat Genet. 2011.
American Academy of Pediatrics. Genetics in Practice: A Clinical Approach for Physicians. AAP Guidelines; 2019.
Medication Comparisons
Compare medications used to treat 3p Syndrome C4706503. 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