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dentOralPath91-120
dentistry: oral pathology 91-120 (iPod)
Question | Answer |
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http://www.uiowa.edu/~oprm/AtlasMAC/A/Aphthae14.jpg | Aphthous ulcers on lower right labial mucosa. There are also white areas of scarring closer to the midline. This patient has major aphthae. |
http://www.uiowa.edu/~oprm/AtlasMAC/L/LupusEryth5B.jpg | Lupus erythematosus on skin and vermilion of upper lip: Lesion has scaly hyperkeratotic areas with a thin rim of erythema at the periphery. A crusted ulcer is present on the vermilion border. |
http://www.uiowa.edu/~oprm/AtlasMAC/K/Keratoacanthoma1A.jpg | Keratoacanthoma: An indurated soft tissue enlargement of the right commissure area. The lesion is fixed to the surface and to underlying muscle. The center of the lesion is filled with keratin. |
http://www.uiowa.edu/~oprm/AtlasMAC/B/BMMP12E.jpg | Mucous membrane pemphigoid. A blast of air is causing formation of a blister. This is known as a Nikolsky sign. A Nikolsky sign is not always present in patients with mucous membrane pemphigoid. |
http://www.uiowa.edu/~oprm/AtlasMAC/P/Pemphigus2.jpg | Pemphigus. Low-power photomicrograph shows a vesicle within the stratified squamous epithelium. Epithelial cells are present along the base of the vesicle. Hematoxylin and eosin stain. |
http://www.uiowa.edu/~oprm/AtlasMAC/V/Varicella1.jpg | Varicella (chickenpox). Ulcers and papules on the skin of the face. |
http://www.uiowa.edu/~oprm/AtlasMAC/A/Adenocarcinoma2.jpg | Adenocarcinoma of right hard and soft palate. This is after surgical excision of the lesion. There is continuity between the nasal cavity and oral cavity. An obturator (partial denture-like appliance) was made to cover the defect. |
http://www.uiowa.edu/~oprm/AtlasMAC/N/Nevus3.jpg | Nevus. A thickened firm nontender well circumscribed dark brown surface lesion on the right hard palate. |
http://www.uiowa.edu/~oprm/AtlasMAC/M/Melanoma1.jpg | Melanoma: Multiple irregularly shaped pigmented lesions are present on the right hard and soft palate. Some of the lesions are flat while others are thickened. |
http://www.uiowa.edu/~oprm/AtlasMAC/M/MucusRetention5.jpg | Mucous retention phenomenon (salivary extravasation). A compressible soft tissue enlargement on the lower left lip. |
http://www.uiowa.edu/~oprm/AtlasMAC/L/LupusEryth7.jpg | Lupus erythematosus: Ulcers with white hyperkeratotic periphery are present on the right buccal mucosa. |
http://www.uiowa.edu/~oprm/AtlasMAC/P/PeriphFibroma4.jpg | Peripheral ossifying fibroma: High-power microscopic image demonstrating numerous fibroblasts sparse collagen and basophilic mineralized material. |
http://www.uiowa.edu/~oprm/AtlasMAC/C/CongenitalEpulis1.jpg | Congenital epulis of the newborn. A well-circumscribed soft tissue enlargement is present on the maxillary alveolar ridge of a newborn. |
http://www.uiowa.edu/~oprm/AtlasMAC/G/GranularCellTumor4.jpg | Granular cell tumor: Microscopic image showing pronounced hyperplasia of the overlying stratified squamous epithelium. This appearance resembles squamous cell carcinoma. |
http://www.uiowa.edu/~oprm/AtlasMAC/A/Aphthae11.jpg | Aphthous ulcer of right lower labial mucosa. Ulcer is covered by a tan fibrin clot. |
http://www.uiowa.edu/~oprm/AtlasMAC/E/EpidermBullosa6.jpg | Epidermolysis bullosa. Multiple ulcers of the lips and perioral skin. |
http://www.uiowa.edu/~oprm/AtlasMAC/H/HerpeticWhitlow1B.jpg | Herpetic whitlow: 3rd day of lesion. |
http://www.uiowa.edu/~oprm/AtlasMAC/H/HerpeticWhitlow1D.jpg | Herpetic whitlow: Vesicle has ruptured and satellite lesions are evident proximal to the main lesion. |
http://www.uiowa.edu/~oprm/AtlasMAC/I/IrritationFibroma8.jpg | Irritation fibroma (polypoid fibrous hyperplasia): Microscopic image showing dense connective tissue. |
http://www.uiowa.edu/~oprm/AtlasMAC/P/Petechiae1.jpg | Petechiae: Numerous red pinpoint sized macules in the maxillary vestibule area. These petechiae are due to trauma. |
http://www.uiowa.edu/~oprm/AtlasMAC/F/FordyceMicroHi.jpg | Fordyce granules: At higher power the sebaceous lobule may be seen to exhibit holocrine secretion e.g. the cells degenerate and lyse in the central part of the lobule to form the secretory product. The arrow points toward the duct orifice. |
http://www.uiowa.edu/~oprm/AtlasMAC/P/PGCG3.jpg | Peripheral giant cell granuloma: A well circumscribed blue and red soft tissue enlargement of the gingiva distal to the maxillary right central incisor. The lesion blanches upon pressure. |
http://www.uiowa.edu/~oprm/AtlasMAC/I/InflamPapHyper4.jpg | Inflammatory papillary hyperplasia: Low-power microscopic image showing multiple exophytic fingerlike (papillary) projections of epithelium and connective tissue. |
http://www.uiowa.edu/~oprm/AtlasMAC/L/Lymphoma1B.jpg | Non-Hodgkin's lymphoma: Close-up of enlarged lymph nodes. |
http://www.uiowa.edu/~oprm/AtlasMAC/K/KaposisSarcoma8.jpg | Kaposi's sarcoma. Microscopic image demonstrating slit-like vascular spaces filled with erythrocytes. |
http://www.uiowa.edu/~oprm/AtlasMAC/V/Varicella2.jpg | Varicella (chickenpox). Ulcers and papules on the skin of the trunk. |
http://www.uiowa.edu/~oprm/AtlasMAC/B/BMMP26.jpg | Mucous membrane pemphigoid. This is a high-power photomicrograph demonstrating separation of the epithelium and the connective tissue in the basement membrane region. |
http://www.uiowa.edu/~oprm/AtlasMAC/B/BMMP19.jpg | Mucous membrane pemphigoid. A blast of air is causing the formation of a blister. This is called a Nikolsky sign. It is sometimes present in mucous membrane pemphigoid pemphigus lichen planus and lupus erythematosus. |
http://www.uiowa.edu/~oprm/AtlasMAC/E/ErythMultiform6.jpg | Erythema multiforme: Close-up of vesicles on the lips. Some of the vesicles have ruptured. |
http://www.uiowa.edu/~oprm/AtlasMAC/H/HandFootMouthOralClinHSDM.jpg | Hand-foot-and-mouth disease: Here is a young person with painful oral ulcers of sudden onset. Virus erythema multiforme / drug reaction and major aphthae might all be considerations. |