A novel AMH missense mutation in a patient with persistent Müllerian duct syndrome.

Persistent Müllerian duct syndrome (PMDS) is characterized by the presence of a uterus, fallopian tubes, and the upper part of the vagina in phenotypic normal male patients. Here, we report a patient diagnosed with PMDS with a novel homozygous missense mutation in the anti-Müllerian hormone (AMH) gene (single nucleotide insertion (C) at position 208 (c.208dup, p.Leu70fs)) leading to a frameshift and the introduction of a premature stop codon. Biopsy of both gonads revealed that germ cells were present in an irregular distribution. However, the absence of OCT3/4, PLAP and c-KIT expression indicated physiological maturation.