MUC5AC and basal cell carcinoma: Held et al. [8] performed an MYB antibody staining of 10 cases of EMPSGC, revealing that all of the cases displayed significant nuclear MYB expression; furthermore, the expression of MYB was found negative in primary mucinous cutaneous carcinomas and mucin-rich basal cell carcinomas, and, also, they found that MYB might be a helpful surrogate measure, particularly in EMPSGC cases with low mucin levels.