In a study of 96 paediatric non-rhabdomyosarcoma soft tissue sarcomas, overexpression of PDGFR-α, PDGFR-β, VEGFR2 and c-KIT occurred in 32.3%, 17.7%, 19.8%, and 8.3% respectively [164]. The gene discussed is KDR; the disease is soft tissue sarcoma.