FGFR4 and melanoma: Notably, an analysis of the COSMIC (Catalogue of Somatic Mutations in Cancer) database (v95, released 24 November 2021) of 221 tissue samples from patients with melanomas of the uveal tract of the eye revealed no mutations in FGFR1, FGFR2, or FGFR3, and only one mutation in FGFR4 (c.514T>G), respectively.