raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:645196

Limited dorsal myeloschisis

Synonyms: LDM

Type
Clinical group
Group
Group of disorders
Status
active

A rare dysraphic abnormality characterized by a persistent connection between the neural tissue and overlying skin. The stalk-like connection consists of a fibroneural tract (mainly composed of fibrous attenuated mesenchymal tissue and neural elements without an epithelial lining) connecting the skin lesion to the underlying dorsal surface of the spinal cord. Fibroneural stalk varies in thickness and complexity and they pass through the deep fascia, a bifid lamina/ the interspinous ligament, and the dura. It can be associated with filum anomaly. Chiari II malformation is not present.

1

Names in Orphadata languages

10 of 12 languages
LangNameSynonyms
enLimited dorsal myeloschisisLDM
frMyéloschisis dorsal limité= en
deBegrenzte dorsale Myeloschisis= en
esMielosquisis dorsal limitadaMDL
itMieloschisi dorsale limitata= en
nlBeperkte dorsale myeloschisis= en
ptMielosquisis dorsal limitada= en
plOgraniczone grzbietowe rozszczepienie rdzeniaOgraniczony grzbietowy rozszczep rdzenia
csOmezená dorzální myeloschíza= en
ukОбмежений дорсальний мієлошизис= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
UMLSC5781237Evalidated

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.

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Sources for this card