Fig. 1.

Idiopathic fibrosing nonspecific interstitial pneumonia in a 40-year-old man.

(a, b) Lung window images of CT scans obtained at levels of right interior pulmonary vein (a) and liver dome (b), respectively, show reticular lesions and traction bronchiectasis and bronchiolectasis (arrowheads) along bronchovascular bundles (arrows) and along subpleural lungs (open arrows).

(c) Low-power magnification of lung obtained from left lower lobe by video-assisted transthoracic surgery (VATS) demonstrates temporally uniform interstitial fibrosis with minimal architectural distortion.