Despite the long‐established knowledge that PAX2 is a marker of mesonephric cell lineage with expression in benign mesonephric remnants [14], and case reports of PAX2 expression in MA [27, 28], it is somewhat surprising that PAX2 has not been further studied as a potential diagnostic marker for MA, particularly since it has been shown that PAX2 is lost in endometrioid neoplasms including the precursor stage of atypical endometrial hyperplasia [29]. Here, PAX2 is linked to atypical endometrial hyperplasia.