raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:309288

Alpha-mannosidosis, adult form

Synonyms: Lysosomal alpha-D-mannosidase deficiency, adult form

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

This disease is described under Alpha-mannosidosis

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAlpha-mannosidosis, adult formLysosomal alpha-D-mannosidase deficiency, adult form
frAlpha-mannosidose de l'adulteDéficit en alpha-D-mannosidase lysosomale, forme adulte
deAlpha-Mannosidose, adulte FormLysosomaler alpha-D-Mannosidase-Mangel, adulte Form
esAlfa-manosidosis, forma adultaDeficiencia de alfa-D-manosidasa lisosomal, forma adulta
itAlfa-mannosidosi, forma dell'adultoDeficit di alfa-D-mannosidasi lisosomiale, forma dell'adulto
nlAlfa-mannosidose, volwassen vormLysosomale alfa-D-mannosidasedeficiëntie, volwassen vorm
ptAlfa - manosidose, forma adulta
plAlfa-mannozydoza, postać dorosłychNiedobór lizosomalnej alfa-D-mannozydazy, postać dorosłych
csAlfa-mannosidóza, adultní formaDeficit alfa-D-mannosidózy, adultní forma
ukАльфа-маннозидоз, доросла формаДефіцит лізосомальної альфа-D-манозидази, доросла форма
zh成人型α-甘露糖苷贮积症成人型溶酶体α-D-甘露糖苷贮积症
trAlfa-mannosidoz, yetişkin formuLizozomal alfa-D-mannosidaz eksikliği, erişkin form
2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM248500NTBTvalidated
ICD-10E77.1NTBTattributedvalidated
ICD-115C56.21NTBTindexvalidated
MONDO0017733Evalidated
UMLSC5679974Evalidated

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:61Alpha-mannosidosis
    rare inborn errors of metabolism; rare genetic diseases; rare neurological diseases; rare ophthalmic disorders; rare bone diseases

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
MAN2B1Disease-causing germline mutation(s) inAssessedHGNC:6826ENSG0000010477460945819p13.13mannosidase alpha class 2B member 119958498[PMID]
5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

30 annotations · validated 2020-02-04
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001256Intellectual disability, mild
HP:0010471Oligosacchariduria
Frequent (79-30%)
HP:0025406Asthenia
HP:0001251Ataxia
HP:0002719Recurrent infections
Occasional (29-5%)
HP:0000739Anxiety
HP:0000708Atypical behavior
HP:0000518Cataract
HP:0001272Cerebellar atrophy
HP:0002120Cerebral cortical atrophy
HP:0002312Clumsiness
HP:0001289Confusion
HP:0000750Delayed speech and language development
HP:0000746Delusion
HP:0000716Depression
HP:0002329Drowsiness
HP:0000738Hallucinations
HP:0001433Hepatosplenomegaly
HP:0002721Immunodeficiency
HP:0000158Macroglossia
HP:0000410Mixed hearing impairment
HP:0000545Myopia
HP:0000938Osteopenia
HP:0002090Pneumonia
HP:0031123Recurrent gastroenteritis
HP:0012157Subcortical cerebral atrophy
Very rare (<4-1%)
HP:0001659Aortic regurgitation
HP:0007957Corneal opacity
HP:0000543Optic disc pallor
HP:0001876Pancytopenia

Run the differential on the 2 obligate / very frequent terms

Annotation source: 30792122[PMID]_20301570[PMID]_27814608[PMID]

7

Sources for this card