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. 2012 Aug 1;186(3):261–272. doi: 10.1164/rccm.201201-0164OC

Figure 11.

Figure 11.

Examples of inflammation in pulmonary arterial hypertension (PAH) lungs. (A) Diffuse pronounced interstitial inflammation (arrows) (hematoxylin and eosin [H&E]). (B) Localized moderate perivascular inflammation (arrowheads) (H&E). (C) Occluded artery with dense inflammatory infiltrate (arrow) (Russel-Movat pentachrome stain). (D) Artery with concentric intima proliferation, neighbored by a dense inflammatory infiltrate (arrow) (Russel-Movat pentachrome stain). (E) Artery with plexiform lesion (arrow), embedded in inflammatory infiltrate (H&E). (F) Arteries focally cuffed by dense inflammation (arrows) (Russel-Movat pentachrome stain). Scale bars = 100 μm.