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Start free with EleplanAttenuated familial adenomatous polyposis
ORPHA:220460Disease
Also called AFAP · APC-related AFAP · APC-related attenuated FAP · APC-related attenuated familial polyposis coli · Attenuated FAP · Attenuated familial polyposis coli
What it is
A mild form of familial adenomatous polyposis characterized by the presence of fewer than 100 adenomatous colonic polyps, a more proximal colonic location, a delayed age of colorectal cancer onset and a more limited expression of the extracolonic features.
Key facts
- Age of onset
- Adult
- Inheritance
- Autosomal dominant, Autosomal recessive
- Classified as
- Disease
Signs and symptoms
Common30–79%
7Sometimes5–29%
7These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.
Gene
ICD-10 codes
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
Related health topics
Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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