Klinefelter syndrome with partial androgen insensitivity syndrome:a case report and literature review
The clinical data of a patient with Klinefelter syndrome(KS)complicated by partial androgen insensitivity syndrome(PAIS)was retrospectively analyzed.The patient,a 2-month-and-22-day-old baby,was admitted to Children's Hospital Affiliated to Zhengzhou University due to abnormal external genitalia in October 2021.Upon birth,the patient exhibited abnormal external genitalia,manifested as clitoral hypertrophy.Hormonal examinations were consistent with those of peers,while chromosomal analysis revealed 47,XXY.Due to the severe undermasculinization,whole exome sequencing was conducted,indicating a heterozygous variant of the AR gene(c.1847G＞A,p.Arg616His).The patient was diagnosed with PAIS,and her elder sister was diagnosed with complete androgen insensitivity syndrome.For further treatment,a multidisciplinary comprehensive evaluation is needed.This is a rare case of KS combined with PAIS,suggesting the possibility of AR gene mutations in KS children with severe undermasculinization.
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