raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:145

Hereditary breast and/or ovarian cancer syndrome

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

A genetic condition characterized by hereditary susceptibility to breast and/or ovarian cancer. It can be defined using family history criteria, or through identification of germline pathogenic variants (GPVs) in clinically validated HBOC genes. However, the genetic basis of about half of clinical HBOC is currently unknown or unexplained by single-gene variants, and approximately half of individuals who harbour PVs in HBOC genes do not have a suggestive family history.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enHereditary breast and/or ovarian cancer syndrome
frSyndrome héréditaire de prédisposition au cancer du sein et/ou de l'ovaire
deBrust- und/oder Ovarialkrebssyndrom, hereditäres
esSíndrome de cáncer hereditario de mama y/o de ovario
itSindrome del cancro ereditario della mammella e/o dell'ovaio
nlErfelijk syndroom van borst- en/of ovariumkanker
ptSíndrome de cancro da mama e/ou ovário hereditário
plDziedziczny rak piersi i jajnikaDziedziczny zespół raka piersi i/lub jajnika
csDědičná forma rakoviny prsu a vaječníků
ukСпадковий синдром раку молочної залози та/або яєчників
zh遗传性乳腺癌-卵巢癌综合征
trKalıtsal meme ve over kanseri sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM114480BTNTvalidated
OMIM604370BTNTvalidated
OMIM612555BTNTvalidated
OMIM613399BTNTvalidated
OMIM614291BTNTvalidated
ICD-10C50.9BTNTattributedvalidated
ICD-10C56NDattributedvalidated
ICD-112C65Especificvalidated
MONDO0003582Evalidated
MeSHD061325Evalidated
UMLSC0677776Evalidated

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

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (3):

No children.

Codes that Orphanet moved or referred to this one:

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Genes

15 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
BARD1Candidate gene tested inNot yet assessedHGNC:952ENSG000001383766015932q35BRCA1 associated RING domain 115342711[PMID]
BRIP1Candidate gene tested inNot yet assessedHGNC:20473ENSG0000013649260588217q23.2BRCA1 interacting DNA helicase 117033622[PMID]
CHEK2Candidate gene tested inNot yet assessedHGNC:16627ENSG0000018376560437322q12.1checkpoint kinase 221562711[PMID]
MRE11Candidate gene tested inNot yet assessedHGNC:7230ENSG0000002092260081411q21MRE11 double strand break repair nuclease22006311[PMID]_14684699[PMID]
NBNCandidate gene tested inNot yet assessedHGNC:7652ENSG000001043206026678q21.3nibrin22006311[PMID]_14684699[PMID]
PALB2Candidate gene tested inNot yet assessedHGNC:26144ENSG0000008309361035516p12.2partner and localizer of BRCA223779253[PMID]
PTENCandidate gene tested inNot yet assessedHGNC:9588ENSG0000017186260172810q23.31phosphatase and tensin homolog23779253[PMID]
RAD50Candidate gene tested inNot yet assessedHGNC:9816ENSG000001135226040405q31.1RAD50 double strand break repair protein22006311[PMID]_14684699[PMID]
RAD51Candidate gene tested inNot yet assessedHGNC:9817ENSG0000005118017961715q15.1RAD51 recombinase10807537[PMID]_24114315[PMID]
TP53Candidate gene tested inNot yet assessedHGNC:11998ENSG0000014151019117017p13.1tumor protein p5324884479[PMID]_23779253[PMID]
BRCA1Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:1100ENSG0000001204811370517q21.31BRCA1 DNA repair associated16112002[PMID]_20301425[PMID]
BRCA2Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:1101ENSG0000013961860018513q13.1BRCA2 DNA repair associated16112002[PMID]_20301425[PMID]
RAD51CDisease-causing germline mutation(s) inAssessedHGNC:9820ENSG0000010838460277417q22RAD51 paralog C20400964[PMID]_21990120[PMID]
RAD51DDisease-causing germline mutation(s) inAssessedHGNC:9823ENSG0000018537960295417q12RAD51 paralog D21822267[PMID]
ATMMajor susceptibility factor inAssessedHGNC:795ENSG0000014931160758511q22.3ATM serine/threonine kinase33471991[PMID]
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Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyValidated28632866[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.

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HPO phenotypes

7 annotations · validated 2017-07-24
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0011027Abnormality of the fallopian tube
HP:0100615Ovarian neoplasm
HP:0030406Primary peritoneal carcinoma
Frequent (79-30%)
HP:0003002Breast carcinoma
Occasional (29-5%)
HP:0002861Melanoma
HP:0002894Neoplasm of the pancreas
HP:0012125Prostate cancer

Run the differential on the 3 obligate / very frequent terms

Annotation source: 20301425[PMID]

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Sources for this card