raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:293199

Pleomorphic rhabdomyosarcoma

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Not applicable
Age of onset
Adolescent, Adult, Childhood, Elderly, Infancy
Status
active

A rare soft tissue sarcoma characterized by a high-grade lesion occurring almost exclusively in adults, composed of bizarre polygonal, round, and spindle cells with evidence of skeletal muscle differentiation. Patients usually present with a rapidly growing, painful mass located in the deep soft tissues of the extremities, but also other anatomic regions. Prognosis is generally poor.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPleomorphic rhabdomyosarcoma
frRhabdomyosarcome pléomorphe
deRhabdomyosarkom, pleomorphes
esRabdomiosarcoma pleomórfico
itRabdomiosarcoma pleomorfo
nlPleomorf rhabdomyosarcoomPleiomorf rhabdomyosarcoom
ptRabdomiossarcoma pleomórfico
plpleomorficzny mięsak prążkowanokomórkowy
csPleomorfní rhabdomyosarkom
ukПлеоморфна рабдоміосаркома
zh多形性横纹肌肉瘤
trPleomorfik rabdomyosarkom

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10C49.9NTBTindexvalidated
MONDO0017386Evalidated
UMLSC0334480Evalidated

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

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
TP53Disease-causing germline mutation(s) inAssessedHGNC:11998ENSG0000014151019117017p13.1tumor protein p537706467[PMID]
NF1Disease-causing somatic mutation(s) inAssessedHGNC:7765ENSG0000019671261311317q11.2neurofibromin 134166060[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Annual incidence<1 / 1 000 000—EuropeClass onlyValidatedRARECARE surveillance of rare cancers in Europe 2011[OTHER]
Point prevalence<1 / 1 000 000—EuropeClass 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