raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:213531

Metaplastic carcinoma of the breast

Type
Disease
Group
Disorder
Age of onset
Adult
Status
active

Metaplastic carcinoma of the breast is a rare, aggressive subtype of invasive breast carcinoma characterized by rapid growth, relatively large tumor size and a tendency to metastasize to distant organs, particularly the lungs, with relatively less frequent involvement of the axillary lymph nodes. Histologically, the tumor shows high-grade cellularity and heterologous differentiation, including chondroid, osseous, pleomorphic/sarcomatoid, spindled, and squamous elements. Patients usually present with a fast-growing, large, well-circumscribed, mobile lump in the breast, which can become painful and involve the chest wall and the skin, leading to ulceration.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMetaplastic carcinoma of the breast
frCarcinome métaplasique du sein
deMetaplastisches Karzinom der Brust
esCarcinoma metaplásico de mama
itCarcinoma metaplastico della mammella
nlMetaplastisch carcinoom van borst
ptCarcinoma metaplásico da mama
plMetaplastyczny rak piersi
csMetaplastický karcinom prsu
ukМетапластична карцинома молочної залози
zh乳腺化生性癌
trMetaplastik meme karsinomu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10C50.0BTNTattributedvalidated
ICD-10C50.1BTNTattributedvalidated
ICD-10C50.2BTNTattributedvalidated
ICD-10C50.3BTNTattributedvalidated
ICD-10C50.4BTNTattributedvalidated
ICD-10C50.5BTNTattributedvalidated
ICD-10C50.6BTNTattributedvalidated
ICD-10C50.8BTNTattributedvalidated
ICD-112C6YNTBTindexvalidated
MONDO0006043Evalidated
UMLSC1334708Evalidated
GARD10804Evalidated
MedDRA10073100Evalidated

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 (1):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

24 records
TypeClassValueAreaQualificationValidationSource
Annual incidence<1 / 1 000 0000.06 / 100 000EuropeValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence<1 / 1 000 0000.074 / 100 000EstoniaValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence<1 / 1 000 0000.065 / 100 000FinlandValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence<1 / 1 000 0000.043 / 100 000IcelandValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence<1 / 1 000 0000.096 / 100 000IrelandValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence<1 / 1 000 0000.084 / 100 000ItalyValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence<1 / 1 000 0000.06 / 100 000LatviaValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence<1 / 1 000 0000.031 / 100 000MaltaValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence<1 / 1 000 0000.045 / 100 000PolandValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence<1 / 1 000 0000.082 / 100 000PortugalValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence<1 / 1 000 0000.074 / 100 000SlovakiaValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence<1 / 1 000 0000.07 / 100 000United KingdomValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence1-9 / 1 000 0000.226 / 100 000BelgiumValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence1-9 / 1 000 0000.11 / 100 000Czech RepublicValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence1-9 / 1 000 0000.136 / 100 000GermanyValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence1-9 / 1 000 0000.108 / 100 000LithuaniaValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence1-9 / 1 000 0000.104 / 100 000NorwayValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence1-9 / 1 000 0000.163 / 100 000SloveniaValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence1-9 / 1 000 0000.128 / 100 000SpainValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence1-9 / 1 000 0000.135 / 100 000SwitzerlandValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence1-9 / 1 000 0000.238 / 100 000NetherlandsValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence<1 / 1 000 0000.081 / 100 000AustriaValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence<1 / 1 000 0000.027 / 100 000BulgariaValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence<1 / 1 000 0000.059 / 100 000CroatiaValue and classValidatedRARECARE surveillance of rare cancers in Europe[OTHER]

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

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card