# XXXY syndrome

> chromosomal anomaly of the aneuploidic type characterized by the presence of two extra X chromosomes in males

**Wikidata**: [Q8042637](https://www.wikidata.org/wiki/Q8042637)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/XXXY_syndrome)  
**Source**: https://4ort.xyz/entity/xxxy-syndrome


## References

1. Monarch Disease Ontology release 2018-06-29