01 January 2015

Histopathology images of pulmonary vascular disease: Complex lesions in PH

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All credits to Vera Demarchi Aiello FPVRI, Mauro Canzian. Published in PVRI Review, Vol 1 Issue 1, Jan-March 2009, pp. 34-39

Complex lesions found in cases of pulmonary hypertension. (a, b) Plexiform lesions of the classical type, showing multiple capillary channels lined by plump endothelial cells; (c) Nodule type of plexiform lesion (arrows) found at the site of arterial ramification; (d) Angiomatoid lesion, characterized by clusters of thin-walled and dilated vessels (arrows) around an occluded muscular artery; (e, f) Fibrinoid necrosis of the medial layer (arrows in d); inflammatory infi ltrate of the adventitia is present in f. Hematoxylin-eosin stain, Objective magnifications 20x

 

Additional keywords: occlusion,lesions,endothelium,proliferation,neoplastic

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