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Histopathology of trucut liver biopsy from (A) normal liver tissue from a macaque diagnosed with chronic, idiopathic enterocolitis and (B) liver tissue from a macaque with extensive amyloidosis and sparse remaining hepatocytes. Amyloid protein is homogenous, amorphous, and eosinophilic. Hematoxylin and eosin stain; bar, 20 µm.
