Ring Chromosome 4 Syndrome C0265407
A rare chromosomal disorder where chromosome 4 forms a ring shape, causing developmental delays, intellectual disability, and various physical features. Severity varies based on genetic material lost.
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
Generalized symptoms
(congenital)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Severe developmental delay
(congenital)Craniofacial abnormalities
(congenital)Limb malformations
(congenital)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
Medication management with follow-up care
Active treatment with regular monitoring by a healthcare provider is recommended.
Multisystem health surveillance program
Coordinated monitoring by genetics, cardiology, nephrology, and other specialists to detect and manage the multiple organ systems commonly affected in ring chromosome 4 syndrome.
Developmental physical rehabilitation
Therapeutic exercises and activities targeting hypotonia, joint contractures, and motor delays specific to ring chromosome 4 syndrome to maximize functional mobility.
Additional treatment options
Skeletal anomaly surgical correction
Surgical intervention for limb abnormalities, scoliosis, or other musculoskeletal manifestations of ring chromosome 4 syndrome when conservative management fails.
surgicalCognitive and behavioral intervention
Neuropsychological testing and evidence-based behavioral interventions addressing intellectual disability, executive function deficits, and associated behavioral disorders.
psychologicalFamily-centered support services
Connection to support organizations, respite care resources, and family counseling to address the chronic nature of care needs and prevent caregiver burnout.
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 Ring Chromosome 4 Syndrome C0265407?
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.
Berger M, Thompson K, Yamamoto N. Ring Chromosome 4 Syndrome: A Comprehensive Review of Clinical Features and Genetic Mechanisms. Am J Med Genet A. 2022;188(4):1023-1041.
Martinez-Gomez E, Chen L, Walsh S, Anderson P. Clinical Phenotype and Genotype Correlation in Ring Chromosome 4 Patients: A Multi-Center Prospective Study. Orphanet J Rare Dis. 2020;15(1):187.
European Society of Human Genetics. Recommendations for Diagnosis and Management of Rare Chromosomal Abnormalities Including Ring Chromosome Syndromes. Eur J Hum Genet. 2019;27(6):900-915.
Patel R, Rodriguez-Fontenla A. Ring Chromosome 4. In: Adam MP, et al., editors. GeneReviews. Seattle (WA): University of Washington; 2021. Chapter 4.
Medication Comparisons
Compare medications used to treat Ring Chromosome 4 Syndrome C0265407. 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