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DentOralPath 31-60

Dentistry: oral pathology 31-60 (online)

QuestionAnswer
<img src="http://www.uiowa.edu/~oprm/AtlasMAC/P/Pemphigus4.jpg "> Pemphigus. Medium power photomicrograph of direct immunofluorescence preparation. There is staining for antibodies in the intercellular spaces of the stratified squamous epithelium.
<img src="http://www.uiowa.edu/~oprm/AtlasMAC/H/Herpes1C.jpg "> Herpes (primary): Multiple ulcers on the labial mucosa commissures and gingiva.
<img src="http://www.uiowa.edu/~oprm/AtlasMAC/E/EpidermBullosa4.jpg "> Epidermolysis bullosa. The hands demonstrate ruptured bullae severe scarring and loss of nails.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/T/Tattoo6.jpg "> Tattoo: A thickened nontender black surface lesion on the left buccal mucosa. A tattoo can sometimes be thickened due to fibrosis.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/L/LupusEryth2.jpg "> Lupus erythematosus skin: Scaly hyperkeratotic lesion on nose.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/H/HerpesZoster2.jpg "> Herpes zoster: Vesicles crusted ulcers and erythema of the upper lip extending to the midline.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/B/BMMP12B.jpg "> Mucous membrane pemphigoid. Note the ginvial erythema and ulceration.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/E/ErythMultiform5.jpg "> Erythema multiforme: Vesicles on the lips.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/H/HerpesZoster1.jpg "> Herpes zoster: Ulcers and erythema in a unilateral distribution on the hard palate. These lesions represent maxillary involvement of the trigeminal nerve.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/M/MucusRetention2.jpg "> Mucous retention phenomenon (salivary extravasation). Low-power photomicrograph showing a lobule of normal salivary gland tissue adjacent to a circumscribed pool of mucus. Hematoxylin and eosin stain.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/E/EpulisFiss5.jpg "> Epulis fissuratum. A lobulated soft tissue enlargement is present in the maxillary left mucolabial fold. The flange of the denture would fit between the rolls of tissue.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/P/Papilloma3.jpg "> Papilloma. Medium power photomicrograph showing acanthosis and hyperkeratosis with underlying loose connective tissue. Hematoxylin and eosin stain.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/V/Varicella4.jpg "> Varicella (chickenpox). An erythematous papule on the skin.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/F/FamEpithHyper2B.jpg "> Familial epithelial hyperplasia (white sponge nevus): Diffuse white epithelial thickening of the left buccal mucosa.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/C/Candidosis1.jpg "> Candidosis. Note white plaques which will rub off on the left buccal mucosa.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/A/Aphthae16.jpg "> Aphthous ulcer. Note the ulcer on the nonkeratinized epithelium of the buccal mucosa.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/D/DermEpidermCyst1.icon.gif "> Dermoid or epidermoid cyst. A large compressible well-circumscribed soft tissue enlargement is present in the floor of the mouth. It is elevating the tongue.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/L/LichenPlanus13.jpg "> Lichen planus: Microscopic image showing hyperkeratosis elongation of the rete ridges and a dense infiltrate of lymphocytes underneath the epithelium.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/L/LichenPlanus1.jpg "> Lichen planus: White striae of right buccal muocsa.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/M/MucusRetention1.jpg "> Mucous retention phenomenon; mucocele - Salivary extravasation phenomenon: A well circumscribed blue compressible enlargement of the commissure area. The lesion does not blanch upon pressure.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/B/BMMP11B.jpg "> Mucous membrane pemphigoid demonstrating gingival erythema.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/S/SCCEryth1.jpg "> Squamous cell carcinoma (superficially invasive): A nontender erythematous pebbly plaque is present on the left soft palate and tonsillar pillar area.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/F/FordyceGran1.jpg "> Fordyce granules: Note the yellow plaques with a smooth surface. Fordyce granules represent sebaceous glands and are not pathologic.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/H/Hemangioma3.jpg "> Hemangioma: Purple compressible lesion of the left soft palate. The lesion blanches upon pressure.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/L/Lymphoma3.jpg "> Lymphoma. An erythematous firm soft tissue enlargement partially covering the external auditory canal.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/G/GingivalCyst1.jpg "> Gingival cyst: A circumscribed soft tissue enlargement on the gingiva.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/A/AdCysCAMicroMedHSDM.jpg "> Adenoid cystic carcinoma. In this view we can appreciate the ductal spaces with their pink product contrasting with the paler material in the others.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/I/IrritationFibroma7.jpg "> Irritation fibroma (polypoid fibrous hyperplasia): Microscopic image showing dense connective tissue and a surface of keratinized stratified squamous epithelium.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/L/LPEryth1A.jpg "> Lichen planus: Erythema and white epithelial thickening of right lateral border of tongue.
<img src=" http://www.uiowa.edu/~oprm/AtlasMAC/S/SCCEryth3.jpg "> Squamous cell carcinoma (superficially invasive): An asymptomatic red patch with white rough areas is present on the left soft palate.
Created by: umichdent
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