Catalog

Gastrointestinal stromal tumour of duodenum

No MMS code

Link to WHO Definition

Gastrointestinal stromal tumour of duodenum – http://id.who.int/icd/entity/1601135210

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