PDGFRA and gastrointestinal stromal tumor: A recent immune profiling study based on human GIST samples revealed that PDGFRA-mutant GISTs contained more immune cells than KIT-mutant GISTs, which suggested that patients with PDGFRA-mutant GISTs could have the potential to respond to ICIs.31 Because only two cases with PDGFRA mutations were included, we could not validate these findings in the current analysis.