Search for a rare disease

* (*) mandatory field

Other search option(s)

Suggest an update

(*) Required fields.


Only comments seeking to improve the quality and accuracy of information on the Orphanet website are accepted. For all other comments, please send your remarks via contact us. Only comments written in English can be processed.

Orphanet doesn't provide personalised answers. To get in touch with the Orphanet team, please contact

Information provided in your contribution (including your email address) will be stocked in .CSV files that will be sent as an email to Orphanet's teams. These emails might be conserved in the teams' mailboxes, in our backoffice servers but will not be registered in our databases (for more information see our section General Data Protection Regulation and data privacy (GDPR) and Confidentiality).

Captcha image

Mast cell sarcoma

Disease definition

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.


Classification level: Disorder
  • Synonym(s): -
  • Prevalence: -
  • Inheritance: -
  • Age of onset: All ages
  • ICD-10: C96.2
  • ICD-11: 2A21.2
  • OMIM: -
  • UMLS: C0036221
  • MeSH: D012515
  • GARD: -
  • MedDRA: -

Detailed information

General public


ERN produced/endorsed by ERN(s)   FSMR produced/endorsed by FSMR(s)
The documents contained in this web site are presented for information purposes only. The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment.