Final oral mucosal lesions
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Transcript of Final oral mucosal lesions
![Page 1: Final oral mucosal lesions](https://reader031.fdocuments.us/reader031/viewer/2022012916/554b8c4bb4c90561588b5652/html5/thumbnails/1.jpg)
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Macule
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Papule
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Nodule
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Vesicle
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Intraepithelial vesicle
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Subepithelial vesicle
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Ulcer
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Petechia
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Echymosis
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Variable degrees of dysplasia & severe dysplasia (carcinoma in situ) of squamous epithelium
In the severe dysplasia (CA in situ) there is full cytological features of malignancy but still the basement
membrane is intact, i.e. there is no invasion
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Actinomycosis. Cervicofacial actinomycosis.
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Actinomycosis colony (sulfur granule) surrounded by pus.
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Primary syphilis (chancre).
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Secondary syphilis. Cutaneous macular lesions.
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Tertiary syphilis. Palatal fistula resulting from a gumma.
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Tuberculosis of the palate.
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Tuberculosis of the maxillary alveolar ridge.
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Diagram of typical TB granuloma
Caseation
Epithelioid cells
Multinucleated GC
Lymphocytes
fibroblasts
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Single hilar granuloma : lung
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Granulomas: low power view
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Granuloma : low power view
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Outer: inflamm. Cells Histiocytes & Giant cells Necrosis :Center
Granuloma
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Langhans giant cell
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