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Some, such as 47 XXY or Klinefelter's syndrome, can lead to a relatively normal life.
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).
* Klinefelter syndrome, or 47 XXY, and also in individuals with an extra X chromosome such as XXXY or in those with XY:XXYY mosaicism;