AMHR2 and granulosa cell tumor: We analyzed the expression of inhibin-α and anti-Müllerian hormone (AMH, also known as Müllerian Inhibiting Substance [26]), which are the two markers most often used to detect murine, human, and equine granulosa cell tumors [27], [28], [29], in Amhr2-Cre;Ctnnb1Δ(ex3)/+ tumors (Fig. 2I–L).