raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:423470

Mucolipidosis type III gamma

Synonyms: ML 3 gamma · ML III gamma · Mucolipidosis type 3 gamma

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Autosomal recessive
Status
active

Mucolipidosis type III gamma (ML 3 gamma) is a very rare lysosomal disease, that has most often been observed in the Middle East, characterized by a progressive slowing of the growth rate in early childhood; stiffness and pain in shoulders, hips, and finger joints; a gradual, mild coarsening of facial features; and by a slower progression, milder clinical course and longer life expectancy than that seen in mucolipidosis type II and mucolipidosis type III alpha/beta. Cognitive function is normal or only slightly impaired and retinitis pigmentosa has been reported in a few patients. Many survive into early adulthood, but ultimately succumb to cardiorespiratory insufficiency.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMucolipidosis type III gammaML 3 gamma · ML III gamma · Mucolipidosis type 3 gamma
frMucolipidose type III gammaML 3 gamma · ML III gamma · Mucolipidose type 3 gamma
deMukolipidose Typ III gammaML 3 gamma · ML III gamma · Mukolipidose Typ 3 gamma
esMucolipidosis tipo III gammaML 3 gamma · ML III gamma · Mucolipidosis tipo 3 gamma
itMucolipidosi, tipo III gammaML 3 gamma · ML III gamma · Mucolipidosi, tipo 3 gamma
nlMucolipidose type III gammaML 3 gamma · ML III gamma · Mucolipidose type 3 gamma
ptMucolipidose tipo III gamaML 3 gama · ML III gama · Mucolipidose tipo 3 gama
plMukolipidoza typu III gammaML 3 gamma · ML III gamma · Mukolipidoza typu 3 gamma
csMukolipidóza, typ III gammaML 3 gama · ML III gama · Mukolipidóza, typ 3 gama
ukМуколіпідоз, тип III гаммаML 3 гамма · ML III гамма · Муколіпідоз типу 3 гамма
zh粘脂质贮积症III型γ粘脂质累积3型γ
trMukolipidoz tip III gamaML 3 gama · ML III gama · Mukolipidozis tip 3 gama

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM252605Evalidated
ICD-10E77.0NTBTattributedvalidated
ICD-115C56.20NTBTattributedvalidated
MONDO0009652Evalidated
UMLSC1854896Evalidated

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:577Mucolipidosis type III
    rare developmental anomalies during embryogenesis; rare inborn errors of metabolism; rare genetic diseases; rare bone diseases

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
GNPTGDisease-causing germline mutation(s) (loss of function) inAssessedHGNC:23026ENSG0000009058160783816p13.3N-acetylglucosamine-1-phosphate transferase subunit gamma20034096[PMID]_19708128[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyValidatedORPHANET_20301784[PMID]

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