There was significant variation in PAX8 expression across EOC histotypes (p < 0.0002, one-way ANOVA), with PAX8 overexpressed in serous ovarian cancer (n=16), CCOC (n=18) and MOC cell lines (n=2), but not in EnOC lines (n=3) lines. The gene discussed is PAX8; the disease is ovarian serous adenocarcinoma.