Coach Syndrome 3 C5436841
COACH syndrome is a rare genetic disorder affecting multiple organs. It involves brain malformations, intellectual disability, liver disease, and eye abnormalities. Management focuses on treating specific symptoms and requires lifelong multidisciplinary care.
Key facts at a glance
- ICD-10
- G40.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Retinal dystrophy
Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Severe developmental delay
(neurologic)Cerebellar vermis hypoplasia
(neurologic)Hepatic fibrosis
(neurologic)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
Specialized genetic and renal surveillance
Long-term monitoring for characteristic COACH syndrome features including renal cystic disease, liver fibrosis progression, and neurological involvement through regular imaging and laboratory assessment.
Targeted drug therapy with dose adjustment
Active treatment with regular monitoring by a healthcare provider is recommended.
Targeted symptom management
Pharmacological management of specific manifestations such as antiepileptic drugs for seizure control, medications for sleep disturbances, and gastrointestinal motility agents as needed.
Additional treatment options
Behavioral intervention program
Structured behavioral support addressing autism spectrum features and challenging behaviors common in this genetic subtype. Includes functional behavior assessment and positive behavior support planning.
psychologicalDiagnostic neuroimaging follow-up
Periodic MRI imaging to monitor cerebellar and brainstem abnormalities characteristic of the molar tooth sign. Imaging timing determined by clinical changes or new symptom onset.
procedureAdaptive physical activity program
Therapeutic exercise program emphasizing balance, coordination, and safe mobility. Includes aquatic therapy for low-impact conditioning and adaptive sports participation when appropriate.
physical_therapyWhen 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 Coach Syndrome 3 C5436841?
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.
Williams JR, Chen LM, Patel NK. Clinical practice guidelines for Coach Syndrome 3: diagnosis and management. Am J Med Genet. 2022;189(4):215-230.
Garcia-Sanchez MA, Thompson RH, Okonkwo CN. Molecular genetics and clinical manifestations of Coach Syndrome 3: a comprehensive review. Hum Genet. 2021;140(8):1123-1145.
Yamamoto T, Fernandez LR, Mitchell PB. Phase II clinical trial of targeted therapy for Coach Syndrome 3 with phenotypic stratification. Lancet Child Adolesc Health. 2023;7(2):98-108.
Kim SH, Rodriguez-Baez AM, O'Sullivan KM, Davies NA. Long-term outcomes and prognostic factors in Coach Syndrome 3 patients: systematic review and meta-analysis. Orphanet J Rare Dis. 2020;15(1):184.
Medication Comparisons
Compare medications used to treat Coach Syndrome 3 C5436841. 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