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General
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Xray description
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Case reports
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Treatment
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Micro description
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Micro images
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Various images

A: papillae lined by bland cuboidal cells extending into bone
B: tumor cells have moderate cytoplasm, round/oval bland nuclei, finely granular chromatin, indistinct nucleoli; C: EMA+; D: CK7+

Papilla with hemorrhagic material

Papilla with vacuolated cells and colloid-like material


Glands contain eosinophilic colloid

Papillary structures composed of cuboidal cells

A: CK7+; B: CK8+; C: CK19+

Vascular endothelial growth factor+

Focal area of high Ki-67+

Cytology description
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Cytology images
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1-3: papillary epithelial clusters with well defined cell borders and bland nuclei
4: cell block shows strips of cuboidal epithelial cells with bland nuclei
5: surgical specimen shows papillary structures and cysts lined by epithelial cells with bland nuclei
6: prior tumor shows similar histology

Positive stains
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Negative stains
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Electron microscopy description
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Differential diagnosis
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Additional references
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End of Ear > Middle ear, inner ear and temporal bone tumors - malignant > Aggressive papillary tumor



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