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6q Partial Trisomy Syndrome C0265412

Published: July 22, 2026Updated: August 20, 2026

A genetic condition where extra genetic material is present on chromosome 6. This can affect development and cause various health issues. Treatment focuses on managing specific symptoms with a team of specialists.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

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

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Global developmental delay

Significant delays in reaching developmental milestones such as sitting, walking, and talking compared to typical children of the same age.

If developmental delays are suspected, seek early intervention services and pediatric evaluation promptly.

!

Congenital heart defect

Structural heart abnormalities present at birth, which may include septal defects, valve abnormalities, or other cardiac malformations.

Requires immediate cardiac evaluation and may necessitate surgical intervention; seek care urgently if symptoms of heart failure develop.

!

Seizures

Epileptic episodes that may vary in type and severity, from focal seizures to generalized tonic-clonic seizures.

Seek immediate medical attention for any seizure activity; requires neurological evaluation and possible anti-epileptic treatment.

Intellectual disability

(neurologic)

Varying degrees of cognitive impairment affecting learning, problem-solving, and adaptive functioning.

Frequency: 75-85% of patients

Facial dysmorphism

(constitutional)

Distinctive facial features including abnormal head shape, ear anomalies, wide-set eyes, or other characteristic facial characteristics.

Frequency: 80-90% of patients

Growth retardation

(constitutional)

Poor growth velocity resulting in short stature and low weight for age, often evident in infancy and childhood.

Frequency: 50-70% of patients

Hypotonia

(neurologic)

Reduced muscle tone resulting in floppy infant appearance and delayed motor skills such as head control and sitting.

Frequency: 50-65% of patients

Genitourinary anomalies

(genitourinary)

Structural abnormalities of the kidneys, bladder, or reproductive organs, which may include renal malformations or genital abnormalities.

Frequency: 15-25% of patients

Skeletal abnormalities

(musculoskeletal)

Bone and joint malformations including spinal curvature, limb abnormalities, or joint contractures.

Frequency: 15-25% of patients

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

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

1

Exercise prescription and weight management

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Multisystem Health Surveillance

Regular monitoring of cardiac, renal, and other organ systems commonly affected by the chromosomal abnormality. Early detection of associated anomalies allows for timely intervention.

monitoring
3

Developmental Supportive Therapy

Comprehensive developmental therapy addressing motor delays, feeding difficulties, and physical challenges associated with the syndrome. Therapy adapts to individual needs and developmental stage.

physical_therapy

Additional treatment options

Family Counseling and Support

Psychological support for families and caregivers addressing the challenges of caring for individuals with complex chromosomal disorders. Helps manage expectations and develop coping strategies.

psychological

Associated Symptom Management

Pharmacological treatment for specific complications such as seizures, gastrointestinal issues, or infections as they arise. Treatment is individualized based on symptom presentation.

medication

Genetic Counseling and Family Planning

Comprehensive genetic counseling services providing information about the condition, recurrence risks, and family planning options including prenatal testing availability.

lifestyle

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is 6q Partial Trisomy Syndrome C0265412?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Lupski JR. Structural variation in the human genome. N Engl J Med. 2007;356(11):1169-1171.

review2007View source →
2

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.

review2010View source →
3

OMIM #614431. 6q24-q27 Duplication. Online Mendelian Inheritance in Man.

textbook2020View source →
4

Stankiewicz P, Lupski JR. Structural variation in the human genome: evolution, mechanism, and impact. Annu Rev Genomics Hum Genet. 2010;11:327-351.

review2010View source →
5

American College of Medical Genetics and Genomics. Clinical Genetics: A Self-Study and Reference Guide. ACMG; 2021.

guideline2021View source →
6

Watson CT, Sharpman TP, O'Keefe CM, et al. Rare copy number variation in neurodevelopmental disorders: examples and clinical utility. Cold Spring Harb Perspect Med. 2015;5(11):a017186.

review2015View source →
7

GeneReviews. Chromosomal Microarray: Clinical Use. University of Washington; Updated 2023.

8

Tammimies K, Marshall CR, Walker S, et al. Molecular diagnostic yield of chromosomal microarray analysis and whole-exome sequencing in children with autism spectrum disorder. JAMA. 2015;314(9):895-903.

meta_analysis2015View source →
9

Manning M, Hudgins L. Array-based technology and recommendations for utilization in medical genetics practice for detection of chromosomal abnormalities. Genet Med. 2010;12(11):742-745.

position_statement2010View source →
10

Zhang F, Gu W, Hurles ME, Lupski JR. Copy number variation in human health, disease, and evolution. Annu Rev Genomics Hum Genet. 2009;10:451-481.

review2009View source →

Medication Comparisons

Compare medications used to treat 6q Partial Trisomy Syndrome C0265412. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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