MKI67 and melanoma: Immunostaining was performed using the melanoma cocktail human melanoma black 45 (HMB45) and melanoma-associated antigen recognized by T cells (MART-1) clones M2-7C10 + M2-9E3 for melanoma screening, protein S-100 (EP32) antibody, anti-SRY-box transcription factor 10 (SOX10) antibody (SP267), Ki67 antigen (p3-NS1-Ag4-1) (Figure 9).