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Figure 3: A. Duodenal epithelium from a 6 y old MCMA clinically healthy dog exhibits rarified tissue in the lamina propia (rectangular frame). Notice the epithelial architecture is preserved in this segment, but there are gaps between basal cells (arrow). Toluidine blue 1μm thick section x 100
B. Duodenal epithelium from a 7 y old MCMA clinically healthy dog shows breakdown of the epithelial continuity (short arrows) and dilated blood vessels (*) in the lamina propia. Toluidine blue 1μm thick section x 100
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