Catalog

Benign gastrointestinal stromal tumour of appendix

No MMS code

Link to WHO Definition

Benign gastrointestinal stromal tumour of appendix – http://id.who.int/icd/entity/1385123377

This is a benign mesenchymal tumour that arises from cells lining the appendix. It is generally immunohitochemically positive for KIT (CD117), phenotypically paralleling Cajal-cell differentiation, and most examples contain KIT- or PDGFRA-activating mutations.