raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:634492

Mosaic schwannomatosis

Synonyms: MNF3 · Mosaic SWN · Mosaic neurilemmomatosis · Mosaic neurofibromatosis type 3

Type
Disease
Group
Disorder
Inheritance
Not applicable
Age of onset
Infancy, Neonatal
Status
active

A rare mosaic form of schwannomatosis characterized by findings typical of schwannomatosis, namely multiple benign nerve sheath tumors called schwannomas. Mosaic form is caused by postzygotic pathogenic variants in SMARCB1 or LZTR1. In mosaic schwannomatosis the allelic/tissue distribution of the pathogenic variant clearly suggests mosaicism. The phenotype can be milder than in schwannomatosis.

1

Names in Orphadata languages

10 of 12 languages
LangNameSynonyms
enMosaic schwannomatosisMNF3 · Mosaic SWN · Mosaic neurilemmomatosis · Mosaic neurofibromatosis type 3
frSchwannomatose mosaïqueNF3 mosaïque · Neurilemmomatose mosaïque · Neurofibromatose 3 mosaïque · Neurofibromatose type 3 mosaïque · SWN mosaïque
deMosaik-SchwannomatoseMNF3 · Mosaik-Neurilemmomatose · Mosaik-Neurofibromatose Typ 3 · Mosaik-SWN
esSchwannomatosis en mosaicoMNF3 · Neurilemomatosis en mosaico · Neurofibromatosis tipo 3 en mosaico · SWN en mosaico
itSchwannomatosi in mosaicoMNF3 · Neurilemmomatosi in mosaico · Neurofibromatosi in mosaico tipo 3 · SWN in mosaico
nlMozaïek schwannomatoseMozaïek neurilemmomatose · Mozaïek neurofibromatose type 3 · MNF3 · Mozaïek SWN
ptSchwanomatose em mosaicoMNF3 · Neurilemomatose em mosaico · Neurofibromatose em mosaico tipo 3 · SWN em mosaico
plMozaikowa postać schwannomatozy= en
csMozaiková forma schwannomatózy= en
ukМозаїчний шванноматозMNF3 · Мозаїчний нейрилеммоматоз · Мозаїчний нейрофіброматоз типу 3 · Мозаїчний SWN

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q85.0NTBTattributedvalidated
MONDO0859765Evalidated
UMLSC5816779Evalidated

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

3 records
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyValidated29909380[PMID]_ORPHANET
Point prevalence1-9 / 1 000 0000.7928 / 100 000United KingdomValue and classValidated29909380[PMID]
Prevalence at birth1-9 / 100 0001.4502 / 100 000United KingdomValue and classValidated29909380[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

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card