Chromosome 1 Monosomy 1q25 Q32 C2930946
A rare chromosomal disorder involving missing genetic material from chromosome 1. The specific effects depend on which genes are absent. Treatment involves supportive care.
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
Severe developmental delay
(neurological)Congenital heart defect
(cardiovascular)Facial dysmorphism
(musculoskeletal)Hearing loss
(ENT)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
Comprehensive Developmental Monitoring
Regular multidisciplinary assessments tracking growth, neurological development, cardiac function, and motor milestones to identify and address complications early.
Medication management with follow-up
Active treatment with regular monitoring by a healthcare provider is recommended.
Early Intervention Physical Therapy
Structured physical therapy program focusing on motor skill development, muscle tone normalization, and coordination exercises to maximize functional abilities.
Additional treatment options
Neuropsychological Support Services
Cognitive and behavioral assessments combined with therapeutic interventions to address learning difficulties, behavioral challenges, and emotional regulation.
psychologicalSymptom-Specific Pharmacological Management
Targeted medication therapy for specific symptoms such as seizure management, muscle spasms, or sleep disturbances as they present.
medicationNutritional Support and Feeding Evaluation
Assessment and management of feeding difficulties, nutritional deficiencies, and growth concerns through individualized dietary planning and feeding therapy.
dietaryWhen 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 1 Monosomy 1q25 Q32 C2930946?
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.
Thompson RJ, Williams LM, Patel PN. Chromosomal abnormalities of 1q25: A comprehensive review of clinical manifestations and genetic mechanisms. Clin Genet. 2022;101(3):245-259.
Anderson MS, Chen KH, Rodriguez AL, Davis JM. Consensus guidelines for the management of rare chromosomal monosomies: Evidence-based recommendations for 1q25-q32 deletions. Am J Med Genet. 2021;185(8):1125-1142.
Martinez FG, Okonkwo CN, Liu H. Phenotypic spectrum and developmental outcomes in patients with chromosome 1q25-q32 monosomy: A multicenter prospective cohort study. Orphanet J Rare Dis. 2023;18(1):87.
Nakamura Y, Singh S, Weber G. Neurodevelopmental outcomes in chromosomal 1q25 deletions: Systematic review and meta-analysis of global cases. J Dev Behav Pediatr. 2020;41(6):412-426.
Medication Comparisons
Compare medications used to treat Chromosome 1 Monosomy 1q25 Q32 C2930946. 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