Abstract
To highlight important clinical aspects of Persistent Müllerian duct syndrome (PMDS). PMDS belongs to the group of differences of sex development. It is attributed to mutations in genes encoding for the anti-Müllerian hormone or its type II receptor (AMHR2) and inherited via an autosomal recessive transmission. An 18-day-old male infant with known bilateral cryptorchidism, presented with left-sided obstructed inguinal hernia. The diagnosis of PMDS was considered during inguinal exploration as both testes together with uterus and fallopian tubes were recognized in the hernial sac. Histology confirmed the presence of Müllerian-derived tissues. Genetic testing revealed two different mutations of the AMHR2 gene, both with autosomal recessive transmission: a frequently encountered deletion of 27 pairs bases on exon 10 of this 11 exon gene and a novel deletion of 2 pairs bases on exon 6. This case is notable being the rarest type of PMDS, that of transverse testicular ectopia and associated with a novel AMHR2 gene mutation.
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More From: Journal of pediatric endocrinology & metabolism : JPEM
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