PMC3323241_01
Meningeal infiltrate with caseation necrosis surrounded by giant cells. A nearby vessel is surrounded by a mononuclear cell infiltrate (occipital lobe, x250, stained with hematoxylin and eosin-Luxol-fast blue).
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F1
Histologically, some infarcts were bland while others were associated with a thick exudate characterized by granulomatous inflammation with caseation necrosis and foreign body-type giant cells (Figure 1).
Proliferative endarteritis. The artery is stenotic and partially occluded by fibrous tissue. The residual lumen is almost completely occupied by recent thrombus (frontal lobe, x160, stained with hematoxylin and eosin-Luxol-fast blue).
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F2
Numerous vascular occlusions with no atheroma were noted (Figure 2).