PMC3335493_01
Surface papillary projections lined by a parakeratotic, acanthotic stratified squamous epithelium at 40x.
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fig1
Histopathologically, the lesion showed exoendophytic proliferation of ductal epithelium with numerous papillary projections lined by a parakeratotic, acanthotic stratified squamous epithelium (Figure 1).
Dysplastic features such as basal cell hyperplasia, nuclear and cellular pleomorphism, and nuclear hyperchromatism at 400x.
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fig2
The papillary epithelium showed dysplastic features such as basal cell hyperplasia, nuclear and cellular pleomorphism, nuclear hyperchromatism, and 3 to 4 mitotic figures per high power field (Figures 2 and 3).
Mitotic figures under oil immersion 1000x.
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fig3
The papillary epithelium showed dysplastic features such as basal cell hyperplasia, nuclear and cellular pleomorphism, nuclear hyperchromatism, and 3 to 4 mitotic figures per high power field (Figures 2 and 3).
Mucous salivary gland with extralobular dilated tortuous ducts at 40x.
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fig4
Below the papillary proliferations, the connective tissue showed mucous salivary gland with extralobular dilated tortuous ducts lined by luminal columnar cells and abluminal cuboidal cells (Figures 4 and 5).
Dilated tortuous ducts lined by luminal columnar cells and abluminal cuboidal cells at 400x.
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fig5
Below the papillary proliferations, the connective tissue showed mucous salivary gland with extralobular dilated tortuous ducts lined by luminal columnar cells and abluminal cuboidal cells (Figures 4 and 5).