Figure 1b. Photomicrographs show UIP pattern. (a) Patchy fibrosis with lung remodeling architecture and striking subpleural distribution. Interstitial chronic inflammation is mild, with a few lymphoid aggregates (arrow). Areas of normal lung are present. There are no features of other interstitial lung disorders. Arrowhead = pleura. (Hematoxylin-eosin stain; original magnification, x4.) (b) Fibroblastic focus of loose organizing connective tissue (arrow) is seen adjacent to a dense collagenous scar. (Movat stain; original magnification, x10.)