NCIt related terms : Gastrointestinal Stromal Tumor (GIST);
NCIt definition : A gastrointestinal stromal tumor (GIST) occurring in childhood. Pediatric GISTs differ
biologically from adult GISTs in that only 11% of pediatric GISTs have activating
mutations of KIT and PDGFRA.;
Alternative definition : NICHD: A gastrointestinal stromal tumor occurring during childhood. Pediatric GIST
differ biologically from adult GIST in that only 11% of pediatric GIST have activating
mutations of KIT and PDGFRA.;