raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:645401

True myeloschisis

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Unknown
Status
active

A rare open neural tube defect characterized by no other malformation than myeloschisis (spina bifida with a neural placode exposed at or below the skin plane and Chiari II malformation).

1

Names in Orphadata languages

10 of 12 languages
LangNameSynonyms
enTrue myeloschisis
frMyéloschisis vrai
deEchte Myeloschisis
esMielosquisis verdadera
itMieloschisi vera
nlWare myeloschisis
ptMielosquise verdadeira
plPrawdziwy rozszczep rdzenia kręgowego
csPravá myeloschíza
ukІстинний мієлошизис

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
MONDO0958352Evalidated
UMLSC5816711Evalidated

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):

  • ORPHA:645398Myeloschisis
    rare developmental anomalies during embryogenesis; rare genetic diseases; rare neurological diseases

No children.

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