Presentation
Progressive systemic sclerosis.
Patient Data
![](https://prod-images-static.radiopaedia.org/images/8735393/cf12b67a900eabd8485700f255377b_big_gallery.jpg)
Bibasilar symmetric ground glass opacities with reticulation and traction bronchiectasis/bronchiolectasis.
Case Discussion
Nonspecific interstitial pneumonia (NSIP) can be idiopathic or a manifestation of collagen vascular diseases, hypersensitivity pneumonitis and drug-induced lung disease.
HRCT is the best imaging tool for characterization and assessment of disease extent. The main CT findings are: bibasilar ground-glass opacities and reticular opacities associated with traction bronchiectasis/bronchiolectasis, sometimes with subpleural sparing.
It is important to make the distinction from usual interstitial pneumonia, because NSIP has a better prognosis.