# emphysema

> abnormal presence of air or other gas within tissues

**Wikidata**: [Q1339243](https://www.wikidata.org/wiki/Q1339243)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Pneumatosis)  
**Source**: https://4ort.xyz/entity/emphysema


## References

1. Loss of skin elasticity is associated with pulmonary emphysema, biomarkers of inflammation, and matrix metalloproteinase activity in smokers
2. Prevalence and Effects of Emphysema in Never-Smokers with Rheumatoid Arthritis Interstitial Lung Disease.
3. Lung densitometry: why, how and when
4. UMLS 2023