raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:391490

Adult-onset myasthenia gravis

Synonyms: Adult-onset acquired myasthenia · Adult-onset autoimmune myasthenia gravis

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Multigenic/multifactorial, Not applicable
Age of onset
Adult
Status
active

A rare autoimmune disorder of the neuromuscular junction characterized by fatigable muscle weakness with frequent ocular signs and/or generalized muscle weakness, and occasionally associated with thymoma.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAdult-onset myasthenia gravisAdult-onset acquired myasthenia · Adult-onset autoimmune myasthenia gravis
frMyasthénie auto-immune de l'adulteMyasthenia gravis de l'adulte · Myasthénie acquise de l'adulte
deMyasthenia gravis mit Beginn im ErwachsenenalterAutoimmune Myasthenia gravis mit Beginn im Erwachsenenalter · Erworbene Myasthenie mit Beginn im Erwachsenenalter
esMiastenia grave de inicio en el adultoMiastenia adquirida de inicio en el adulto · Miastenia grave autoinmune de inicio en el adulto
itMiastenia gravis a esordio nell'età adultaMiastenia acquisita a esordio nell'età adulta · Miastenia grave autoimmune a esordio nell'età adulta · Miastenia gravis autoimmune a esordio nell'età adulta
nlMyasthenia gravis met aanvang op volwassen leeftijdAuto-immune myasthenia gravis met volwassen aanvang · Verworven myasthenie met volwassen aanvang
ptMiastenia gravis com início no adulto
plMiastenia o początku w wieku dorosłymMiastenia autoimmunologiczna o początku w wieku dorosłym · Miastenia nabyta o początku w wieku dorosłym
csAdultní forma myasthenia gravisAdultní získaná myastenie · Autoimunitní myasthenia gravis s nástupem v dospělosti
ukMiastenia gravis з дебютом у дорослому віціНабута у дорослому віці міастенія · Автоімунна міастенія, що починається у дорослих
zh成人起病重症肌无力成人起病自身免疫性重症肌无力
trErişkin başlangıçlı myastenia gravisErişkin-başlangıçlı edinsel miyasteni · Erişkin-başlangıçlı otoimmün miyastenia gravis

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10G70.0NTBTattributedvalidated
ICD-118C60NTBTattributedvalidated
MONDO0018324Evalidated
UMLSC5680024Evalidated

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):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

5 records
TypeClassValueAreaQualificationValidationSource
Point prevalence1-5 / 10 00031.8 / 100 000SerbiaValue and classValidated23363926[PMID]
Annual incidence1-9 / 100 0001.33 / 100 000SerbiaValue and classValidated23363926[PMID]
Point prevalence1-5 / 10 00017 / 100 000United StatesValue and classValidated[EXPERT]_ORPHANET
Point prevalence1-5 / 10 00028 / 100 000United KingdomValue and classValidated[EXPERT]_ORPHANET
Point prevalence1-5 / 10 000—EuropeClass onlyValidatedORPHANET

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