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MICROSCOPIC FEATURES
Acinar epithelium
Large polygonal
Lightly basophilic cytoplasm (blue dot tumors)
Protuberance of luminal membrane producing a tombstone appearance
Uniform to variable eccentic nuclei
Cytoplasmic granules (PAS positive-diastase resistant; mucicarcmine positive)
Hemosiderin
Duct epithelium
Eosinophilic cytoplasm
Variable cell size
Central lumen of various size
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Slide 93
