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Fig 1. Masson trichrome–stained longitudinal section (A) showing a muscular vessel wall (V) with a thrombus (T) completely occluding the artery 90 minutes after application. A magnified view (B) of the arterial wall and the thrombus in hematoxylin-eosin-stained section revealing evenly distributed barium sulfate particles (arrows) in this whole blot thrombus. The endothelium is intact (asterisk), and no inflammatory changes are observed in the vessel wall.
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