CYP11B1 and uterine corpus leiomyoma: Interestingly, CYP11B1, CYP11B2 and CYP17A1-17,20 lyase, corresponding to the most distal steps of steroidogenesis accessible by our approach on the three different pathways (glucocorticoids, mineralocorticoids and androgens, respectively), showed a decreased activity in BL patients in comparison to both control subjects and UL patients.