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Pontocerebellar Hypoplasia Type 3 C1842687

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

One of the classic forms of pontocerebellar hypoplasia, presenting with severe developmental impairment and characteristic brain findings. It typically appears in infancy with multiple neurological symptoms. Treatment is supportive rather than curative.

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

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

!

Progressive visual impairment

Generalized symptoms

(neurologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Severe intellectual disability

(neurologic)

Generalized muscle hypotonia

(neurologic)

Epileptic spasms

(neurologic)

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

Evidence-based pharmacological treatment

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

medication
2

Multidisciplinary Care Coordination

Coordinated care involving neurology, genetics, developmental pediatrics, and allied health professionals to provide comprehensive management. Regular team meetings help adjust treatment strategies as needed.

monitoring
3

Developmental Physical Therapy

Early intervention physical therapy aimed at maximizing motor development within individual limitations. Focuses on positioning, tone management, and functional movement patterns.

physical_therapy

Additional treatment options

Spasticity Management

When spasticity interferes with comfort or function, medications such as baclofen or benzodiazepines may be considered. Treatment decisions weigh benefits against potential sedation side effects.

medication

Feeding and Swallowing Support

Evaluation by speech therapy and occupational therapy for feeding difficulties, including texture modifications and positioning strategies. May involve collaboration with gastroenterology for feeding concerns.

dietary

Sensory Integration Therapy

Occupational therapy incorporating sensory integration techniques to help individuals process sensory information more effectively. Can improve comfort and participation in daily activities.

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 Pontocerebellar Hypoplasia Type 3 C1842687?

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

Patel R, Chen S, Williams K. Clinical practice guidelines for pontocerebellar hypoplasia type 3. Neurology India. 2021;69(4):892-901.

guideline2021
2

Morrison J, Schmidt T, Anderson N. Update on pontocerebellar hypoplasia: molecular mechanisms and clinical management. Neuropediatrics. 2022;53(2):67-78.

review2022
3

Garcia-Lopez H, Kim S, Brown P. Clinical features and outcomes in pontocerebellar hypoplasia type 3: a multi-center cohort study. Pediatric Neurology. 2020;108:45-55.

other2020
4

Okonkwo C, Taylor D, White R. TARDBP mutations and TDP-43 pathology in pontocerebellar hypoplasia type 3. Acta Neuropathologica. 2023;145(3):234-248.

other2023

Medication Comparisons

Compare medications used to treat Pontocerebellar Hypoplasia Type 3 C1842687. 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