SPTAN1 and neoplasm: Despite high overall correlation (R2 = 0.9933), several tumour‐promoting proteins were enriched in the neoplasm‐associated FT, such as SPTAN1, which is overexpressed in early OC lesions in the FT,3 while tumour suppressor fructose‐1,6‐bisphosphatase 1 (FBP1)4 was reduced (Figure 2B, Table S2), suggesting that our workflow has potential to identify proteins in FT lavage linked to tumour progression and local neoplastic changes.