Klinefelter's syndrome

(redirected from 47 XXY)
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Noun1.Klinefelter's syndrome - syndrome in males that is characterized by small testes and long legs and enlarged breasts and reduced sperm production and mental retardation; a genetic defect in which an extra X chromosome (XXY) is present in the male
syndrome - a pattern of symptoms indicative of some disease
References in periodicals archive ?
Show several karyotypes of normal and aneuploid cells, including the trisomies 21, 18, and 13, and 47 XXY and 45 XO.
No obstante, se han publicado dos casos en varones con esta entidad, ambos asociados a cariotipo 47 XXY, con edades de 10 y 12 anos (4, 5).