raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:268813

Myelocystocele

Type
Clinical group
Group
Group of disorders
Inheritance
Multigenic/multifactorial, Not applicable
Age of onset
Infancy, Neonatal
Status
active

A rare closed neural tube defect characterized by cystic dilatation of the central canal of the spinal cord, herniating through a posterior vertebral arch defect (spina bifida) into an expanded cerebrospinal fluid (CSF) filled dural sac (meningocele). It can be located at the caudal part of the spinal cord (terminal myelocystocele) or above conus (non terminal myelocystocele).

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMyelocystocele
frMyélocystocèle
deMyelozystozele
esMielocistocele
itMielocistocele
nlMyelocystocele
ptMielocistocelo
plMielocystocele
csMyelocystokéla
ukМієлоцистоцеле
zh脊髓囊状突出
trMiyelosistosel

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q05.9NTBTindexvalidated
ICD-11LA02.02Especificvalidated
MONDO0017077Evalidated
MONDO17077Evalidated
UMLSC4551677Evalidated

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 (2):

Children (2):

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass 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

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

7

Sources for this card