Finally, to determine what the potential role platelets and or immune cells have on CTCs released into the circulation from HGSC tumours, 19 CD45-, EpCAM/E-Cadherin+ cells were identified for single cell RNA sequencing (scRNAseq) analysis from 2 patients with matched ovarian vein and peripheral CTC isolations (Supplementary Fig. S3A). This evidence concerns the gene PTPRC and neoplasm.