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Sex Dev. 2019 Feb 16. doi: 10.1159/000496996. [Epub ahead of print]

A 47,XXY Pregnant Woman without the SRY Gene.

Abstract

Individuals with a 47,XXY karyotype usually present with a male phenotype due to the additional Y chromosome. In this paper, we describe a 47,XXY female who was pregnant with a fetus of the same karyotype based on chromosome analysis of amniotic fluid cells. Further analysis of her Y chromosome indicated that the additional Y chromosome contains no SRY gene on the short arm but carries the azoospermia factor region on the long arm, including azoospermia factor a, b and c (AZFa, AZFb, AZFc). This region may influence her female phenotype. Fertile females with a 47,XXY karyotype and loss of SRY are extremely rare. This paper is the first report of a 47,XXY pregnant woman with a normal phenotype and may enrich our knowledge on 47,XXY individuals.

KEYWORDS:

47,XXY; <italic>SRY</italic>; Y chromosome

PMID:
30799415
DOI:
10.1159/000496996

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