PMC5917521_01
Occlusal radiograph (left) superficial erosion of the palatine bone, computed tomography (right) revealed the extent of the tumor mass
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F1
A volume-rendered computed tomography showed erosion of the palatine bone on the right side of the maxilla [Figure 1].
Photomicrograph of overlying palatine epithelium with underlying connective tissue showing clear cells (H&E, x40)
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F2
Photomicrograph of clear cells and small eosinophilic cells in sheets and islands separated by fibrocellular connective tissue septa (H&E, x40)
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F3
Photomicrograph of island of clear cells and eosinophilic cells with duct-like structures (H&E, x200)
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F4
Photomicrograph of island of pleomorphic clear cells and eosinophilic cells (H and E, x200)
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F5
Photomicrograph of palatine salivary gland at the periphery of the mass (H&E, x40)
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F6
Photomicrograph of infiltration of nerve fiber bundles at the periphery of the tumor (H&E, x100)
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F7
Photomicrograph of negative mucicarmine staining of the clear cells except the palatine salivary (H&E, x40)
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F8
Photomicrograph of immunostaining of the clear cells by the cytokeratin 5/6 (x100)
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F9
Photomicrograph of immunostaining of the small eosinophilic cells by the proliferative marker P63 (x100)
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F10
Photomicrograph of immunostaining of the clear cells by the s100 (x100)
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F11