Download - Oral epithelial tumor
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Papilloma, floor of mouth.
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Papilloma, lateral tongue.
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Papilloma
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Oral wart, palate.
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Oral wart.
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wart
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Oral wart.
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Oral wart. Immunohistochemical stain for common human papillomavirus in an oral wart. Positive, brown-staining nuclei
are seen in upper level keratinocytes.
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Condyloma acuminatum.
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Focal epithelial hyperplasia of the lip.
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Focal epithelial hyperplasia of the buccal mucosa.
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Biopsy specimen showing carcinoma in situ.
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in situ carcinoma extending into salivary duct.
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Squamous cell carcinoma. Small, crusted ulcerof the lower lip vermilion.
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Squamous cell carcinoma. Ulcerated mass ofthe lower lip vermilion.
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Squamous cell carcinoma of the gingiva.
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Squamous cell carcinoma, floor of mouth.
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Advanced squamous cell carcinoma of the posterior-lateral tongue.
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Squamous cell carcinoma, gingiva.
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Squamous cell carcinoma of the lip.
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Exophytic squamous cell carcinoma of the lip.
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Squamous cell carcinoma of the lateral tongue in a 34-year-old man.
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Squamous cell carcinoma of the lateral tongue.
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Squamous cell carcinoma of the ventral surface of the tongue.
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Early squamous cell carcinoma of the floor of mouth.
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Early squamous cell carcinoma of the floor of mouth.
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Squamous cell carcinoma of the floor of mouth.
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Squamous cell carcinoma of the floor of mouth.
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Second primary squamous cell carcinoma of the palate in a 34-year-old man.
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Metastasis of squamous cell carcinoma of the tongue to a submandibular lymph node.
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Squamous ce ll carcinoma. Metastatic depositswithin cervical lymph nodes present as firm, painless enlargements
as seen in this patient with metastasis to a superior jugular nodefroma posterior lateral tongue carcinoma.
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Well-differentiated squamous cell carcinoma.l ow-power photomicrograph showing islands of malignant squamous epithelium invading into the lamina properia.
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Well-differentiated squamous cell carcinoma.High-power view showing dysplastic epithelial cells with keratin
pearl formation.
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Moderately differentiated squamous cell carcinoma.Although no keratinization is seen in this medium-power
view, these malignant cells are still easily recognizable as being ofsquamous epithelial origin.
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Poorly differentiated squamous cell carcinoma.The numerous pleomorphic cells within the lamina properia
represent anaplastic carcinoma.
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Verru cous carcinoma. Extensive papillary, whitelesion of the maxillary vestibule.
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Verrucous carcinoma. Large, exophytic, papillary mass of the maxillary alveolar ridge.
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Verrucous carcinoma. Low-power photomicrographshowing marked epithelial hyperplasia with a rough, papillary
surface and keratin plugging.
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Verrucouscarcinoma. High-power view showingbulbous rete ridges without significant dysplasia.
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Erythroleukoplakia. Mixed red-an d-white lesionof the lateral borde r of the tongue. Biopsy revealed carcinoma
in situ.
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l eu koplakia. Extensive ventra l and lateral tonguelesion containing multiple areas representi ng various possible
pha ses or clinical appearances
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Moderate epithelial dysplasia. Dysplast icchanges extend to the midpo int of the ep ithelium and are character
ized by nuclear hyperchromatism. pleomorphism, and ce llularcrowding.
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Ductal dysplasia. Salivary gland duct exhibitingsquamous metaplasia and dysplasia t hat originated from an overlying
surface epit helial dysplasia
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Basal cell carcinoma.
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Basal cell carcinoma. Noduloulcerat ive lesion ofthe upper lip demonstrating telangiectasia and small
ulceration.
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Basal cell carcinoma.
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Basal cell carcinoma. Pigmented basal cell carcinomaof the cheek.
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Basal cell carcinoma.
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Basal cell carcinoma. Note solid tumor (left) and nested tumor (right).
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Basal cell carcinom a. low- power photomicrographshowing ulceration of the epidermal surface associated with
an invading tumor of hyperchromatic epithelial cells. Inset demonstratesislandsof basophilic epithelium with peripheral palisading.