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Familial Adenomatous Polyposis Due To 5q22 2 Microdeletion C5548205

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

A chromosomal deletion causing multiple colon polyps similar to FAP. Individuals with this deletion need regular screening and usually require surgical removal of the colon to prevent cancer.

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

Key facts at a glance

ICD-10
D13.91
ICD-11
3A00.0
Body system
gastrointestinal
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Gastrointestinal perforation

Abdominal pain or nausea

(gastrointestinal)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Mucous in stool

(gastrointestinal)

Abdominal pain

(gastrointestinal)

Nausea

(gastrointestinal)

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

Elective colectomy timing based on microdeletion syndrome

5q22.2 microdeletion FAP variant requires personalized surgical planning accounting for potential developmental comorbidities and associated anomalies. Collaboration between genetics and surgery is essential.

surgical
2

GI disease management

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

medication
3

Multisystem surveillance for microdeletion phenotype

Beyond standard FAP monitoring, surveillance for associated features including developmental delay, seizures, and structural brain anomalies that may accompany the 5q22.2 microdeletion.

monitoring

Additional treatment options

Aspirin chemoprevention

Low-dose aspirin provides NSAID-based chemoprevention with manageable side effect profile, appropriate for long-term use in this typically younger patient population with microdeletion-associated FAP.

medication

Neurodevelopmental support services

Integrated psychological and developmental support addressing cognitive profile, school accommodations, and family adjustment to complex genetic condition with multiple healthcare needs.

psychological

Capsule endoscopy for small bowel surveillance

Video capsule endoscopy evaluates small bowel polyps beyond reach of standard upper endoscopy. Important for FAP variants with extensive small bowel polyp involvement.

procedure

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 Familial Adenomatous Polyposis Due To 5q22 2 Microdeletion C5548205?

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 Familial Adenomatous Polyposis Due To 5q22 2 Microdeletion C5548205. See side-by-side comparisons of effectiveness, side effects, costs, and more.

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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