While previous studies have reported that BerEP4 can differentiate BCC from BSCs and collision tumors, Linskey et al. (2013) reported that BerEP4 alone was unable to differentiate bSCC and BSC as both were stained by BerEP4, although the mean percentage of cells stained was significantly higher in BSC group compared to bSCC. Here, EPCAM is linked to skin basal cell carcinoma.