Comparing gene expression of tumor-cells, enriched for EpCAM positive cells, with molecular subtypes as defined by Tothill et al. [7], we found a significant association of non-miliary tumor cells with the immunoreactive C2 subtype (p<0.001), whereas miliary tumor cells were significantly associated with the differentiated or C4 subtype (p<0.001, Figure 5A). This evidence concerns the gene EPCAM and neoplasm.