MUC16 and Friedreich ataxia: Given the hypothesis that EOC derives from fallopian fimbriae, we further sought to examine the expression of known markers of EOC including mesothelin (MSLN) [21–24], mucin 16 (MUC16/CA125) [21,24,25], human epididymis protein 4 (HE4/WFDC2) [23,24,26–28], and epithelial cell adhesion molecule (EPCAM) [29], relative to their expression in normal fallopian tube (FN) and fallopian adenocarcinoma (FA).