MLANA and melanoma: UM cells are commonly stained with melanocytic differentiation markers such as S-100, human melanoma black 45 (HMB45), melan-A/melanoma antigen recognized by T cells 1 (MART-1), melanocyte-inducing transcription factor (MITF) and sex-determining region Y-box 10 (SOX10) [52,53,54,55].