ESPE Abstracts

45,X/46,XY mosaicism is a rare karyotype and patients present with varying phenotypes from Turner females to males. Genital phenotype, gonadal function and histology, and growth are all affected to varying degrees by the karyotype. Information on these long-term outcomes is scarce and larger multicenter studies are needed. Therefore, in collaboration with 17 centers, we performed a study including 59 post-pubertal males that had reached adult height. Centers were identified an...

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The phenotype of 45,X/46,XY mosaicism is heterogeneous ranging from females with Turner syndrome (TS) to apparently normal males. Cardinal features of TS include reduced final height and infertility. Apart from endocrine, renal and neurocognitive disorders, structural heart defects are frequently present (in 25% to 50%), also in TS patients with mosaicism 45,X/46,XY. Males with 45,X/46,XY frequently show stigmata typically associated with TS but data on cardiovascular patholog...

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