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General
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Poor prognostic factors
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Case reports
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Gross description
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Micro description
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Micro images
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Papillary fronds with hobnail cells and vacuolated cells

Microcystic and solid patterns in tumors from father and daughter

Figure 3A-tumor (left) and normal salivary gland (right)

Various images


With clear cells

D: H&E; E: CK7; F: CK20

Dedifferentiated tumor


Fig 1: dedifferentiated parotid tumor with some classic areas
Fig 2: mitotic figures and necrosis
Fig 3: differentiated areas with basophilic cytoplasm and vesicular nuclei
Fig 4: PAS+ diastase resistant granules


Case of the Week #355

Cytology images
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Acinar-like cells but with larger nuclei, no ducts, no fibrofatty stroma and no "bunch of grades" architecture


Case of the Week #355

Positive stains
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Electron microscopy description
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Differential diagnosis
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End of Salivary glands > Epithelial / myoepithelial tumors > Acinic cell carcinoma



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