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FIG 3. Microscopic histopathologic changes in exposed retia possibly attributable to DMSO angiotoxicity.
A, Exposed rete (0.8 mL per 30 seconds): single microartery shows extensive transmural chronic inflammation and angionecrosis (hematoxylin-eosin, original magnification x150).
B, Exposed rete (0.8 mL per 60 seconds): single microartery is completely occluded with amorphous foreign material and has focal transmural chronic inflammation (arrows) (hematoxylin-eosin, original magnification x150).
C, Exposed rete (0.8 mL per 90 seconds): single microartery shows only moderate intimal hyperplasia (hematoxylin-eosin, original magnification x150).
D, Exposed rete (0.8 mL per 60 seconds): single microartery shows evidence of focal angionecrosis and endoluminal granulomatous inflammation with foreign body giant cell formation (arrow) (hematoxylin-eosin, original magnification x150).
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