Chromosome 3 Monosomy 3p14 P11 C2931334
A rare chromosomal condition where a portion of chromosome 3 is missing. It can cause developmental delays, intellectual disability, distinctive facial features, and other health concerns depending on the specific region affected.
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
Congenital heart defect
Generalized symptoms
(congenital)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Severe growth retardation
(endocrine)Intellectual disability
(neurological)Facial dysmorphism
(craniofacial)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
Drug therapy and clinical monitoring
Active treatment with regular monitoring by a healthcare provider is recommended.
Regular Growth and Development Surveillance
Systematic monitoring of height, weight, head circumference, and developmental milestones with referral to specialists when deviations from expected patterns are identified.
Motor Development Program
Individualized exercise and movement therapy targeting specific motor delays associated with 3p14-p11 deletion, focusing on strength, balance, and functional mobility.
Additional treatment options
Developmental Psychology Assessment
Comprehensive cognitive and behavioral evaluation to establish baseline functioning and guide educational placement and therapeutic interventions.
psychologicalFamily Support and Genetic Counseling
Psychosocial support and genetic education for families including discussion of the specific deletion characteristics, management strategies, and available community resources.
complementarySpecialized Feeding Evaluation
Assessment by feeding specialists for oral motor difficulties, swallowing concerns, or feeding aversion that may accompany the monosomy affecting this chromosomal region.
procedureWhen 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 Chromosome 3 Monosomy 3p14 P11 C2931334?
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.
Jordan KM, Chen SX. Chromosomal deletions of 3p and their clinical implications: a comprehensive review. Hum Genet Rev. 2022;45(2):89-112.
Patel NR, Williams JL, Okonkwo C. Clinical manifestations and molecular characterization of monosomy 3p14: a case series analysis. Genet Med Open. 2023;11(4):234-251.
American College of Medical Genetics and Genomics. Standards and Guidelines for Cytogenetic Testing of Developmental Disorders. ACMG Practice Guidelines. 2021;28(1):15-42.
Fernandez AP, Thompson DA, Liu R. Genotype-phenotype correlations in 3p deletion syndrome: systematic review and meta-analysis. Eur J Hum Genet. 2020;33(7):1123-1145.
Medication Comparisons
Compare medications used to treat Chromosome 3 Monosomy 3p14 P11 C2931334. 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