Smoking-related interstitial fibrosis
Jump to navigation
Jump to search
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.
Smoking-related interstitial fibrosis | |
---|---|
Diagnosis in short | |
| |
LM | septal thickening of alveoli with thick collagen bundles (described as "ropy") and hyperplastic smooth muscle fibres; minimal inflammation |
LM DDx | usual interstitial pneumonia |
Gross | subpleural and centrilobular predominance |
Site | lung |
| |
Associated Dx | emphysema, respiratory bronchiolitis |
Clinical history | smoking |
Prognosis | benign, better than UIP |
Smoking-related interstitial fibrosis, abbreviated SRIF, is a benign pauci-inflammatory scarring associated with smoking.
General
- Associated with emphysema and respiratory bronchiolitis.[1]
Clinical:
- Much better prognosis than usual interstitial pneumonia (UIP) with emphysema - five year survival 86% (SRIF) versus 41% (UIP).[2]
Gross
- Subpleural and centrilobular predominance.[1]
Microscopic
Features:[1]
- Septal thickening of alveoli with:
- Thick collagen bundles - may be described as "ropy".[3]
- Hyperplastic smooth muscle fibres.
- Minimal inflammation.
DDx:
- Usual interstitial pneumonia - has inflammation.
Images
See also
References
- ↑ 1.0 1.1 1.2 1.3 Katzenstein, AL. (Jan 2012). "Smoking-related interstitial fibrosis (SRIF), pathogenesis and treatment of usual interstitial pneumonia (UIP), and transbronchial biopsy in UIP.". Mod Pathol 25 Suppl 1: S68-78. doi:10.1038/modpathol.2011.154. PMID 22214972.
- ↑ 2.0 2.1 Chae, KJ.; Jin, GY.; Jung, HN.; Kwon, KS.; Choi, H.; Lee, YC.; Chung, MJ.; Park, HS. (2016). "Differentiating Smoking-Related Interstitial Fibrosis (SRIF) from Usual Interstitial Pneumonia (UIP) with Emphysema Using CT Features Based on Pathologically Proven Cases.". PLoS One 11 (9): e0162231. doi:10.1371/journal.pone.0162231. PMID 27611866.
- ↑ 3.0 3.1 Primiani, A.; Dias-Santagata, D.; Iafrate, AJ.; Kradin, RL. (2014). "Pulmonary adenocarcinoma mutation profile in smokers with smoking-related interstitial fibrosis.". Int J Chron Obstruct Pulmon Dis 9: 525-31. doi:10.2147/COPD.S61932. PMID 24920890.