raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:477742

Nodular fasciitis

Synonyms: Pseudosarcomatous fasciitis · Pseudosarcomatous fibromatosis

Type
Disease
Group
Disorder
Inheritance
Not applicable
Age of onset
All ages
Status
active

A rare soft tissue tumor characterized by a solitary mass-forming fibrous proliferation that usually occurs in the subcutaneous tissue, composed of uniform fibroblastic/myofibroblastic cells displaying a loose growth pattern. Upper extremities, trunk, and head and neck are most frequently affected. The lesion typically grows rapidly and almost always measures less than five centimeters in diameter. Macroscopically, it may appear circumscribed or infiltrative but is not encapsulated. Recurrence after excision is very rare, and metastasis does not occur.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enNodular fasciitisPseudosarcomatous fasciitis · Pseudosarcomatous fibromatosis
frFasciite nodulaireFasciite pseudo-sarcomateuse · Fibromatose pseudosarcomateuse
deNoduläre FasziitisFibromatose, pseudosarkomatöse · Pseudosarkomatöse Fasziitis
esFascitis nodularFascitis pseudosarcomatosa · Fibromatosis pseudosarcomatosa
itFascite nodulare
nlNodulaire fasciitisPseudosarcomateuze fasciitis · Pseudosarcomateuze fibromatose
ptFascite nodular
plGuzkowe zapalenie powięzi= en
csNodulární fascitida= en
ukВузликовий фасціїтПсевдосаркоматозний фасціїт · Псевдосаркоматозний фіброматоз
zh增生性筋膜炎假肉瘤性纤维瘤病
trNodüler fasiitPsödosarkomatöz fasiit · Psödosarkomatöz fibromatoz

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10M79.8NTBTattributedvalidated
ICD-11FB51.2NTBTindexvalidated
MONDO0004187Evalidated
UMLSC0410005Evalidated
MedDRA10065988Evalidated

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 (2):

No children.

4

Genes

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
MYH9Part of a fusion gene inAssessedHGNC:7579ENSG0000010034516077522q12.3myosin heavy chain 921826056[PMID]
USP6Part of a fusion gene inAssessedHGNC:12629ENSG0000012920460433417p13.2ubiquitin specific peptidase 621826056[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass 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