PAX2 and PAX8 expressions in SMBT with endometriosis were closer to the expression patterns in EBT, implicating that SMBT with endometriosis might also be associated with endometrioid tumors like ex- “seromucinous carcinoma” and may be different from SMBT without endometriosis in a specific molecular pattern. The gene discussed is PAX8; the disease is endometrioid tumor.