raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:2929

Juvenile polyposis syndrome

Synonyms: JIP · JPS · Juvenile gastrointestinal polyposis · Juvenile intestinal polyposis

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Adolescent, Adult, Childhood, Infancy
Status
active

A rare inherited cancer-predisposing syndrome characterized by the presence of juvenile hamartomatous polyps in the gastrointestinal (GI) tract.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enJuvenile polyposis syndromeJIP · JPS · Juvenile gastrointestinal polyposis · Juvenile intestinal polyposis
frSyndrome de polypose juvénileJIP · JPS · PIJ · Polypose gastro-intestinale juvénile · Polypose intestinale juvénile
deJuveniles Polyposis-SyndromJPS · Juvenile gastrointestinale Polyposis · Juvenile intestinale Polypose
esSíndrome de poliposis juvenilJIP · JIPS · Síndrome de poliposis gastrointestinal juvenil
itPoliposi gastrointestinale giovanileJPS · Poliposi intestinale giovanile · Sindrome della poliposi giovanile
nlJuveniele polyposis-syndroomJIP · JPS · Juveniele gastro-intestinale polyposis · Juveniele intestinale polyposis
ptSíndrome de polipose juvenilJIP · JPS · Polipose gastro-intestinal juvenil · Polipose intestinal juvenil
plPolipowatość młodzieńczaJIP · JPS · Młodzieńcza polipowatość jelit · Młodzieńcza polipowatość żołądkowo-jelitowa
csJuvenilní polypózaJIP · JPS · Syndrom juvenilní polypózy · Juvenilní intestinální polypóza
ukСиндром ювенільного поліпозуJIP · JPS · Ювенільний поліпоз шлунково-кишкового тракту · Ювенільний поліпоз кишечника
zh幼年性息肉病综合征幼年性胃肠道息肉病
trJüvenil polipozis sendromuJIP · JPS · jüvenil intestinal polipoz · jüvenil gastrointestinal polipoz

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM174900BTNTvalidated
OMIM175050NTBTvalidated
OMIM612242NTBTvalidated
ICD-10D12.6NTBTattributedvalidated
ICD-112B90.YNTBTindexvalidated
MONDO0017380Evalidated
MeSHC537702Evalidated
UMLSC0345893Evalidated
GARD3065Evalidated
MedDRA10089326Evalidated

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 (2):

Children (2):

4

Genes

0 direct · 5 via subtypes

Orphanet records no gene directly on this code.

Recorded by Orphanet on subtypes of this disorder:

GeneSubtypeAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ENGORPHA:329971Generalized juvenile polyposis/juvenile polyposis coliCandidate gene tested inNot yet assessedHGNC:3349ENSG000001069911311959q34.11endoglin17204053[PMID]_18178612[PMID]
BMPR1AORPHA:329971Generalized juvenile polyposis/juvenile polyposis coliDisease-causing germline mutation(s) inAssessedHGNC:1076ENSG0000010777960129910q23.2bone morphogenetic protein receptor type 1A18823382[PMID]
SMAD4ORPHA:329971Generalized juvenile polyposis/juvenile polyposis coliDisease-causing germline mutation(s) inAssessedHGNC:6770ENSG0000014164660099318q21.2SMAD family member 418823382[PMID]
BMPR1AORPHA:79076Juvenile polyposis of infancyRole in the phenotype ofAssessedHGNC:1076ENSG0000010777960129910q23.2bone morphogenetic protein receptor type 1A16685657[PMID]_22993021[PMID]_23331837[PMID]
PTENORPHA:79076Juvenile polyposis of infancyRole in the phenotype ofAssessedHGNC:9588ENSG0000017186260172810q23.31phosphatase and tensin homolog16685657[PMID]_22993021[PMID]_23331837[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Annual incidence1-9 / 100 0003.85 / 100 000EuropeValue and classValidated20301642[PMID]_[EXPERT]
Point prevalenceUnknown—WorldwideClass onlyValidatedORPHANET

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

52 annotations · validated 2019-01-07
HPOTerm (as annotated by Orphanet)Diagnostic
Obligate (100%)
HP:0012198Juvenile colonic polyposisDiagnostic criterion
HP:0004784Juvenile gastrointestinal polyposisDiagnostic criterion
HP:0100896Rectal polyposis
Very frequent (99-80%)
HP:0005266Intestinal polyp
Frequent (79-30%)
HP:0002027Abdominal pain
HP:0001903Anemia
HP:0004390Hamartomatous polyposis
HP:0030256Small intestinal polyposis
Occasional (29-5%)
HP:0001999Abnormal facial shape
HP:0012432Chronic fatigue
HP:0100759Clubbing of fingers
HP:0003003Colon cancer
HP:0002014Diarrhea
HP:0000969Edema
HP:0001508Failure to thrive
HP:0002239Gastrointestinal hemorrhage
HP:0001510Growth delay
HP:0004795Hamartomatous stomach polyps
HP:0002573Hematochezia
HP:0001256Intellectual disability, mild
HP:0002576Intussusception
HP:0002003Large forehead
HP:0000256Macrocephaly
HP:0007378Neoplasm of the gastrointestinal tract
HP:0100833Neoplasm of the small intestine
HP:0100822Rectocele
HP:0000331Short chin
HP:0004406Spontaneous, recurrent epistaxis
HP:0012126Stomach cancer
Very rare (<4-1%)
HP:0040231Abnormal onset of bleeding
HP:0012050Anasarca
HP:0100026Arteriovenous malformation
HP:0030049Brain abscess
HP:0002408Cerebral arteriovenous malformation
HP:0005280Depressed nasal bridge
HP:0000494Downslanted palpebral fissures
HP:0000421Epistaxis
HP:0004941Extrahepatic portal hypertension
HP:0010797Hemangioblastoma
HP:0006574Hepatic arteriovenous malformation
HP:0000316Hypertelorism
HP:0003075Hypoproteinemia
HP:0000369Low-set ears
HP:0100579Mucosal telangiectasiae
HP:0001012Multiple lipomas
HP:0000160Narrow mouth
HP:0002894Neoplasm of the pancreas
HP:0002243Protein-losing enteropathy
HP:0002092Pulmonary arterial hypertension
HP:0006548Pulmonary arteriovenous malformation
HP:0002326Transient ischemic attack
HP:0100761Visceral angiomatosis

Run the differential on the 4 obligate / very frequent terms

Annotation source: 20301642[PMID]_29169633[PMID]_25022750[PMID]

7

Sources for this card