Medical Term:

Mann methyl blue-eosin stain

Pronunciation: man meth′il blū ē′ō-sin stān

Definition: a stain useful for anterior pituitary and viral inclusion bodies; this mixture of two dyes stains alpha cell granules red, beta cell granules dark blue, chromophobes gray to pink, colloid red, erythrocytes orange-red, and collagen fibers blue; this method is also useful for enterochromaffin, goblet, Paneth, and pancreatic islet cells; Negri bodies appear red whereas their nuclei and central granules are blue.

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