The finding of similar patterns of marker aberrancy in endometriosis adjacent to EBT and adenocarcinoma, or EBT adjacent to adenocarcinoma, further cements a link between aberrancy for β-catenin, PAX2, PTEN, and cancer initiation/progression in ovarian endometriosis-associated neoplasia. The gene discussed is PAX2; the disease is ovarian endometriosis.