raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:733

Familial adenomatous polyposis

Synonyms: Colorectal adenomatous polyposis · FAP · Familial polyposis coli

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant, Autosomal recessive
Age of onset
Adult
Status
active

A rare intestinal polyposis syndrome characterized by the development of up to hundreds to thousands of adenomas in the large bowel. It is a multi-system disorder with important extracolonic manifestations.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enFamilial adenomatous polyposisColorectal adenomatous polyposis · FAP · Familial polyposis coli
frPolypose adénomateuse familialeFAP · PAF · Polypose adénomateuse colorectale · Polypose rectocolique familiale
dePolyposis, adenomatöse familiäreFAP · Polypen, adenomatöse kolorektale
esPoliposis adenomatosa familiarPAF · Poliposis adenomatosa coli · Poliposis adenomatosa colorrectal
itPoliposi adenomatosa familiareFAP · Poliposi adenomatosa colorettale · Poliposi familiare del colon
nlFamiliale adenomateuze polyposisColorectale adenomateuze polyposis · FAP · Familiale polyposis coli
ptPolipose adenomatosa familiarFAP · PAF · Polipose adenomatosa colorretal dominante · Polipose adenomatosa familiar autossómica dominante · Síndrome Gardner
plRodzinna polipowatość gruczolakowataFAP · Polipowatość gruczolakowata jelita grubego · Rodzinna polipowatość jelita
csFamiliární adenomatózní polypózaKolorektální adenomatózní polypóza · FAP · Familiární střevní polypóza · Familiární polypóza střev
ukСімейний аденоматозний поліпозАденоматозний поліпоз товстої кишки · Сімейний поліпоз coli · FAP
zh家族性腺瘤性息肉病结直肠腺瘤性息肉病
trAilesel adenomatöz polipozFAP · Ailesel polipoz koli · Kolorektal adenomatöz polipoz

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM175100BTNTvalidated
OMIM608456BTNTvalidated
OMIM616415BTNTvalidated
OMIM617100BTNTvalidated
ICD-10D12.6NTBTattributedvalidated
ICD-112B90.YNTBTindexvalidated
MONDO0021055Evalidated
MeSHD011125Evalidated
UMLSC0032580Evalidated
GARD6408Evalidated
MedDRA10056981Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (4):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
APCDisease-causing germline mutation(s) inAssessedHGNC:583ENSG000001349826117315q22.2APC regulator of Wnt signaling pathway31070935[PMID]
5

Prevalence and incidence

12 records
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 100 000—WorldwideClass onlyNot yet validatedORPHANET
Point prevalence1-9 / 100 0006 / 100 000EuropeValue and classValidatedEuropean Medicines Agency 2011[OTHER]
Annual incidence1-5 / 10 00019 / 100 000DenmarkValue and classValidated12692062[PMID]
Point prevalence1-9 / 100 0004.65 / 100 000DenmarkValue and classValidated12692062[PMID]
Annual incidence1-9 / 100 0008.6 / 100 000SwedenValue and classValidated10636071[PMID]
Point prevalence1-9 / 100 0003.2 / 100 000SwedenValue and classValidated10636071[PMID]
Annual incidence1-5 / 10 00015.8 / 100 000FinlandValue and classValidated1314763[PMID]
Point prevalence1-9 / 100 0002.63 / 100 000FinlandValue and classValidated1314763[PMID]
Prevalence at birth1-5 / 10 00011.6 / 100 000United KingdomValue and classValidated20082463[PMID]
Point prevalence1-9 / 100 0005.3 / 100 000United KingdomValue and classValidated20082463[PMID]
Annual incidence1-9 / 1 000 0000.24 / 100 000AustraliaValue and classValidated2556632[PMID]
Point prevalence1-9 / 100 0002.8 / 100 000AustraliaValue and classValidated2556632[PMID]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

45 annotations · validated 2021-04-07
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0005227Adenomatous colonic polyposis
HP:0003003Colon cancer
HP:0200063Colorectal polyposis
HP:0007649Congenital hypertrophy of retinal pigment epithelium
HP:0100245Desmoid tumors
HP:0007378Neoplasm of the gastrointestinal tract
Frequent (79-30%)
HP:0000164Abnormality of the dentition
HP:0002019Constipation
HP:0002014Diarrhea
HP:0004783Duodenal polyposis
HP:0004394Multiple gastric polyps
HP:0100246Osteoma
HP:0025388Thyroid nodule
Occasional (29-5%)
HP:0100717Abnormality of the cementum
HP:0000820Abnormality of the thyroid gland
HP:0008256Adrenocortical adenoma
HP:0010615Angiofibromas
HP:0006771Duodenal adenocarcinoma
HP:0100631Neoplasm of the adrenal gland
HP:0011068Odontoma
HP:0002895Papillary thyroid carcinoma
HP:0011069Supernumerary tooth
HP:0000706Unerupted tooth
Very rare (<4-1%)
HP:0040274Adenocarcinoma of the small intestine
HP:0009592Astrocytoma
HP:0005230Biliary tract obstruction
HP:0030692Brain neoplasm
HP:0030153Cholangiocarcinoma
HP:0002888Ependymoma
HP:0200040Epidermoid cyst
HP:0010614Fibroma
HP:0000853Goiter
HP:0002884Hepatoblastoma
HP:0000821Hypothyroidism
HP:0012032Lipoma
HP:0011355Localized skin lesion
HP:0002885Medulloblastoma
HP:0100575Neoplasm of the gallbladder
HP:0006725Pancreatic adenocarcinoma
HP:0001733Pancreatitis
HP:0030434Pilomatrixoma
HP:0002893Pituitary adenoma
HP:0031459Soft tissue neoplasm
HP:0012126Stomach cancer
HP:0100646Thyroiditis

Run the differential on the 6 obligate / very frequent terms

Annotation source: 20301519[PMID]_31070935[PMID]

7

Sources for this card