raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:85197

Genochondromatosis type 1

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Childhood
Status
active

A rare disorder characterized by chondromatosis, typically involving the clavicles, upper end of the humerus, and lower end of the femur. Lesions are bilateral and symmetrical. The clinical course is benign.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enGenochondromatosis type 1
frGénochondromatose type 1
deGenochondromatose Typ 1
esGenocondromatosis tipo 1
itGenocondromatosi, tipo 1
nlGenochondromatose type 1
ptGenocondromatose
plGenochondromatoza
csGenochondromatóza, typ 1
ukГенохондроматоз, тип 1
zh遗传性软骨瘤病1型
trGenokondromatoz tip 1

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM137360NTBTvalidated
ICD-10Q78.4NTBTattributedvalidated
ICD-11LD24.2YNTBTindexvalidated
MONDO0019411Evalidated
UMLSC5438970Evalidated

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

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—EuropeClass onlyNot yet validatedORPHANET

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

3 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0000889Abnormality of the clavicle
HP:0002815Abnormality of the knee
HP:0005701Multiple enchondromatosis

Run the differential on the 3 obligate / very frequent terms

7

Sources for this card