raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:98902

Amish nemaline myopathy

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Neonatal
Status
active

A type of nemaline myopathy (NM) only observed in several families of the Amish community.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAmish nemaline myopathy
frMyopathie némaline type Amish
deNemalin-Myopathie Typ Amish
esMiopatía nemalínica tipo Amish
itMiopatia nemalinica, tipo Amish
nlNemaline myopathie, Amish-type
ptMiopatia nemalínica, tipo Amish
plMiopatia nemalinowa Amiszów
csNemalinová myopatie Amišů
ukНемалінова міопатія амішів
zh阿米什线状体肌病
trAmish nemaline miyopatisi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM605355Evalidated
ICD-10G71.2NTBTattributedvalidated
ICD-118C72.00NTBTindexvalidated
MONDO0011539Evalidated
UMLSC1854380Evalidated
GARD8334Evalidated

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 (3):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
TNNT1Disease-causing germline mutation(s) inAssessedHGNC:11948ENSG0000010504819104119q13.42troponin T1, slow skeletal type10952871[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—EuropeClass onlyNot yet validatedORPHANET
Prevalence at birth>1 / 1000200 / 100 000Specific populationValue and classValidated10952871[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

12 annotations · validated 2018-07-11
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0003458EMG: myopathic abnormalities
HP:0003273Hip contracture
HP:0001270Motor delay
HP:0001319Neonatal hypotonia
HP:0000768Pectus carinatum
HP:0003323Progressive muscle weakness
HP:0007126Proximal amyotrophy
HP:0003044Shoulder flexion contracture
HP:0001337Tremor
HP:0003803Type 1 muscle fiber predominance
Occasional (29-5%)
HP:0002747Respiratory insufficiency due to muscle weakness
Excluded (0%)
HP:0001249Intellectual disability

Annotation source: 10952871[PMID]_25712079[PMID]

7

Sources for this card