# 49,XXXXY syndrome

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

**Wikidata**: [Q4638720](https://www.wikidata.org/wiki/Q4638720)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/XXXXY_syndrome)  
**Source**: https://4ort.xyz/entity/49-xxxxy-syndrome


## References

1. Monarch Disease Ontology release 2018-06-29