46 XY undervirulized male DSD: Reporting a patient with prenatally diagnosed disorder/difference of sex development (DSD) with heterozygous mutations.

Leydig cell hypoplasia is a rare autosomal recessive condition caused by mutations in luteinizing hormone/chorionic gonadotropin receptor (LHCGR) genes in which 46, XY patients demonstrate a wide spectrum of disorders/differences of sex development (DSD) phenotypes ranging from normal female external genitalia in severe subtypes to micropenis or hypospadias in patients with less severe presentations. Although most patients with LHCGR defects are diagnosed at puberty, here we describe the prenatal diagnosis of 46, XY DSD due to two likely pathogenic variants in , one of which has never been reported.