The assays include immunoflow analyses using fluorescently labelled antibodies against membrane-bound tumour cell proteins, such as CD146, a human high molecular weight melanoma-associated antigen (HMW-MAA), also known as melanoma chondroitin sulphate proteoglycan (MCSP) in MM [46,47], and others such as the epithelial cell adhesion molecule (EpCAM), which is not expressed on MM cells [49]. The gene discussed is EPCAM; the disease is neoplasm.