raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:590539

Isolated melanotic schwannoma

Synonyms: Isolated melanocytic schwannoma

Type
Disease
Group
Disorder
Inheritance
Not applicable
Age of onset
Adolescent, Adult, Childhood, Elderly
Status
active

A rare nervous system tumor characterized by cells phenotypically representing Schwann cells but containing melanosomes and expressing melanoma markers. The entity occurs as a non-psammomatous (typically affecting spinal nerves) or a psammomatous (also involving nerves of the intestinal tract and heart) variant. About 50% of psammomatous tumors are associated with Carney complex. Slightly over 10% of melanotic schwannomas follow a malignant course.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enIsolated melanotic schwannomaIsolated melanocytic schwannoma
frSchwannome mélanotique isoléSchwannome mélanocytaire isolé
deSchwannom, isoliertes melanotischesIsoliertes melanozytäres Schwannom
esSchwannoma melanótico aisladoSchwannoma melanocítico aislado
itSchwannoma melanotico isolatoSchwannoma melanocitico isolato
nlGeïsoleerd melanotisch schwannoomGeïsoleerd melanocytair schwannoom
ptSchwanoma melanótico isoladoSchwanoma melanocítico isolado
plBarwnikowy nerwiak osłonkowy, izolowany= en
csIzolovaný melanocytární schwannom= en
ukІзольована меланотична шванномаІзольована меланоцитарна шваннома
zhIsolated melanotic schwannoma= en
trIsolated melanotic schwannoma= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10D36.1NTBTattributedvalidated
ICD-112A02.1YNTBTattributedvalidated
MONDO0035136Evalidated
UMLSC1306247Evalidated

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

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Annual incidenceUnknown—WorldwideClass onlyValidated33088497[PMID]
Point prevalenceUnknown—WorldwideClass onlyValidated33088497[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.

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Sources for this card