raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:66661

Mast cell sarcoma

Type
Disease
Group
Disorder
Age of onset
All ages
Status
active

Mast cell sarcoma is a rare, neoplastic disease characterized by locally destructive sarcoma-like growth of a solitary mass, composed of atypical mast cells, and without systemic involvement. It can affect any organ and the symptoms depend on the location. Cells are medium to large, pleomorphic or epithelioid, with oval, bilobed or multilobulated nuclei, sometimes prominent multinucleated giant cells. The disease closely resembles other neoplasms and may share associated markers, however the tumor is positive for mast cell tryptase.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMast cell sarcoma
frSarcome mastocytaire
deMastzellsarkom
esSarcoma de mastocitos
itSarcoma mastocitico
nlMestcelsarcoom
ptSarcoma de mastócitos
plMięsak mastocytarny
csMastocytární sarkom
ukСаркома з тучних клітин
zh肥大细胞肉瘤
trMast hücre sarkomu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10C96.2NTBTinclusionvalidated
ICD-112A21.2Especificvalidated
MONDO0019024Evalidated
MeSHD012515Evalidated
UMLSC0036221Evalidated

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

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 0000.015 / 100 000EuropeValue and classValidated26447996[PMID]_27602777[PMID]_ORPHANET

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

9 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0100495Mastocytosis
HP:0100242Sarcoma
Frequent (79-30%)
HP:0012378Fatigue
HP:0002240Hepatomegaly
HP:0100720Hypoplasia of the ear cartilage
HP:0002716Lymphadenopathy
HP:0100721Mediastinal lymphadenopathy
HP:0001744Splenomegaly
HP:0001824Weight loss

Run the differential on the 2 obligate / very frequent terms

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Sources for this card