DSG3 and squamous cell carcinoma: DSG3 was expressed at high levels in most squamous cell carcinomas (Figure 4 and [9]), but the same was also true for KRT19. Because KRT19 was also ubiquitous in other histological subtypes, and had a larger expression level differences between tumors, LNs, and PB, we favor this marker from the KRT19/DSG3 group.