raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:646139

Dysplastic cortical hyperostosis

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal recessive
Status
active

A rare primary bone dysplasia with increased bone density characterized by lethal neonatal dwarfism with hydrops. Cortical thickening throughout the skeleton, particularly in the long bones and ribs, brachycephaly, severe brachydactyly and craniofacial abnormalities are reported.

1

Names in Orphadata languages

10 of 12 languages
LangNameSynonyms
enDysplastic cortical hyperostosis
frHyperostose corticale dysplasique
deDysplastische kortikale Hyperostose
esHiperostosis cortical displásica
itIperostosi corticale displastica
nlDysplastische corticale hyperostose
ptHiperostose cortical displásica
plDysplastyczna hiperostoza korowa
csDysplastická kortikální hyperostóza
ukДиспластичний кортикальний гіперостоз

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q78.8NTBTattributedvalidated
ICD-11LD24.1YNTBTindexvalidated
MONDO0016357Evalidated
UMLSC5190839Evalidated

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):

Children (2):

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

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

7

Sources for this card