Figure 2 (A) and (B) represent the S100A1 and S100B expression on conjunctival naevi, respectively. (C) and (D) show the expression of S100A1 and S100B on conjunctival melanoma, respectively. (E–H) represent the S100A1, S100B, CEA, and S100A6 expression on uveal melanoma, respectively. Mark the difference in S100A1 expression between conjunctival naevi and conjunctival melanoma, also the S100B expression between uveal and conjunctival melanoma is remarkably different. All figures are with a magnification of ×200.