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Man2b2 Deficiency Cn322255

Published: July 22, 2026Updated: August 27, 2026

A rare genetic disorder where proteins build up inside cells, affecting the nervous system. Caused by enzyme deficiency. Management focuses on supportive care; research into treatments is ongoing.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 27, 2026Editorial policy

Key facts at a glance

ICD-10
E88.9
ICD-11
5A00.0
Body system
metabolic
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Seizures

Fatigue or weight changes

(metabolic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Coarse facial features

(dysmorphic)

Recurrent respiratory infections

(immunologic)

Failure to thrive

(growth)

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

Combination drug regimen with regular assessment

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

medication
2

Structured physical therapy program

Individualized rehabilitation program focusing on improving motor coordination, muscle strength, and functional mobility affected by MAN2B2 deficiency manifestations.

lifestyle
3

Specialized nutritional support

Dietary modifications including enzyme replacement considerations and individualized meal planning to address metabolic abnormalities and optimize nutritional status.

dietary

Additional treatment options

Cognitive and behavioral interventions

Neuropsychological support addressing developmental delays, learning difficulties, and behavioral challenges commonly associated with inherited metabolic disorders.

psychological

Comprehensive laboratory monitoring

Regular biochemical testing including lysosomal enzyme levels, metabolic markers, and organ function tests to assess disease progression and treatment response.

monitoring

Occupational therapy services

Therapeutic interventions focused on improving activities of daily living, fine motor skills, and functional independence in patients with MAN2B2 deficiency.

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 Man2b2 Deficiency Cn322255?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Medication Comparisons

Compare medications used to treat Man2b2 Deficiency Cn322255. 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 27, 2026. · Read our editorial policy