XXYY syndrome (https://en.homosaurus.org/v4/homoit0002885)




Identifier
homoit0002885
Preferred Label
XXYY syndrome
English
Síndrome XXYY
Spanish
Alternative Label
Síndrome 48 XXYY
Spanish
Description
People with XXYY syndrome are born with an extra copy of both an X and Y chromosome, resulting in an 48XXYY chromosome pattern instead of the typical 46XY. People with XXYY chromosomes may have undescended testes and produce lower-than-typical amounts of testosterone, which can cause them to start puberty at a later age than typical and develop less pronounced secondary sex characteristics like muscle tone and facial hair. They may also experience breast growth. People with XXYY syndrome often have other physical features that are similar to those developed by people with Klinefelter syndrome (47XXY).
English
Las personas con síndrome XXYY nacen con una copia adicional de un cromosoma X y uno Y, lo que resulta en un patrón cromosómico 48XXYY, en lugar del típico 46XY. Las personas con cromosomas XXYY pueden tener testículos no descendidos y producir cantidades de testosterona inferiores a las habituales, lo que puede provocar que comiencen la pubertad a una edad más tardía de lo habitual y que desarrollen características sexuales secundarias menos pronunciadas, como el tono muscular y el vello facial. También pueden experimentar crecimiento de los senos. Las personas con síndrome XXYY suelen tener otras características físicas similares a las que desarrollan las personas con síndrome de Klinefelter (47XXY).
Spanish
Contributors
Developed during an extended collaboration with interACT: Advocates for Intersex Youth, 2022-2023.
English
Traducción y revisión al español realizadas por Ernesto Cuba, Sofia Zamora, Sandy Alcantara, Mar Munné, Ana Portnoy Brimmer y el Comité Español de Homosaurus en 2024
Spanish
Issued (Created)
2023-06-28 18:57:56 UTC
Modified
2025-02-23 07:12:59 UTC
Broader
Intersex variations [homoit0000669]

Hierarchy Display

Intersex variations
XXYY syndrome


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