SCLC or NSCLC with tumor tissue based genetic alterations: FGFR1, FGFR2, FGFR3, VEGFA, or PDGFRα amplification; any FGFR1, FGFR2, or FGFR3 gene fusion; FGFR1, FGFR2, or FGFR3 activating mutation. The gene discussed is FGFR3; the disease is non-small cell lung carcinoma.