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. Author manuscript; available in PMC: 2007 Jul 17.
Published in final edited form as: Clin Chest Med. 2007 Mar;28(1):23–vii. doi: 10.1016/j.ccm.2006.11.010

Figure 5.

Figure 5

Veno-occlusive PH. A. Low-power histological view of thickened pulmonary veins running into the lung parenchyma from the pleural surface (left edge) (arrows). Note marked vein wall thickening and decreased lumen. Adjacent alveoli are filled with blood and show septal thickening with engorged capillaries (arrowhead). B. Marked vein thickening with intimal projection probably representing organized thrombus (arrow). Alveolar hemorrhage and septal thickening are highlighted with arrowhead. C and D. Movat stained pulmonary vein showing arterialization pattern with internal and external elastic layers (arrow). The vein shows marked intima thickening with organized thrombus (arrowheads).