# tetrasomy 18p

> Presence of four copies of the short arm of chromosome 18

**Wikidata**: [Q2110688](https://www.wikidata.org/wiki/Q2110688)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Tetrasomy_18p)  
**Source**: https://4ort.xyz/entity/tetrasomy-18p


## References

1. Monarch Disease Ontology release 2018-06-29