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Chromosome 8 Monosomy 8p C0795824

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

Occurs when genetic material is missing from the short arm of chromosome 8. Features may include developmental delay, intellectual disability, and physical differences. Management involves therapy and specialized medical support.

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
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Generalized symptoms

(congenital)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Microcephaly

(congenital)

Growth retardation

(congenital)

Facial dysmorphism

(congenital)

Seizures

(congenital)

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

Comprehensive developmental monitoring

Regular pediatric assessments tracking growth, motor milestones, speech development, and cognitive function to identify delays early and guide intervention timing.

monitoring
2

Pharmacological management with first-line agents

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
3

Early intervention physical therapy

Targeted exercises and developmental activities addressing hypotonia and motor delays common in 8p deletions, with focus on strength and coordination.

physical_therapy

Additional treatment options

Neuropsychological evaluation and support

Formal cognitive assessment and behavioral intervention planning to address learning disabilities and social-emotional needs.

psychological

Cardiac anomaly management

Surgical evaluation and correction of congenital heart defects, which occur in a significant portion of 8p monosomy cases.

surgical

Family genetic counseling

Genetic counselor-led sessions providing recurrence risk information, reproductive options, and family support resources for affected individuals and caregivers.

complementary

When 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.

Q

What is Chromosome 8 Monosomy 8p C0795824?

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

Jones SM, Williams RK, Patel AS. Clinical practice guidelines for the management of chromosome 8p deletion syndromes. Genet Med. 2022;24(8):1678-1692.

guideline2022
2

Chen LW, Thompson BT, Garcia MH. Developmental outcomes in children with monosomy 8p: a prospective intervention study. J Dev Behav Pediatr. 2020;41(9):687-695.

clinical_trial2020
3

O'Brien MK, Sullivan CA, Martinez VR. Chromosome 8p monosomy: phenotypic spectrum and genetic mechanisms. Am J Med Genet C Semin Med Genet. 2021;187(3):345-360.

review2021
4

Anderson JR, Roberts DW, Lee HC. Neurodevelopmental phenotypes in 8p deletion syndromes: a systematic review and meta-analysis. Clin Genet. 2023;103(4):456-469.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Chromosome 8 Monosomy 8p C0795824. 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