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73 Cards in this Set
- Front
- Back
Most common fibrous proliferative lesion of the oral cavity
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61% fibroma, 22% peripheral ossifying fibroma, 12% pyogenic granuloma, 5% peripheral giant cell granuloma
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Most common inflammatory/reactive ulcerations of the oral cavity
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Traumatic and aphthous ulcers
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Lesion in buccal mucosa along bite line or at gingival margin
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Irritation fibroma
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Nodular mass of fibrous tissue, few inflammatory cells, covered by squamous mucosa, tx with surgical excision
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Irritation fibroma
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Highly vascular peduncular lesion (similar to granulation tissue), occurring in the gingiva of children, young adults, and pregnant women
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Pyogenic granuloma
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Red to purple in color, growth may be rapid, could this be a malignant neoplasm of the oral cavity?
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Pyogenic granuloma
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40% of the population in the US, more common in the first 2 decades of life, painful, recurrent, may be prevalent within certain families; lesions resolve spontaneously within 7-10 days, may persist for weeks
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Aphthous ulcers
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Single or multiple, shallow, hyperemic ulcerations covered by thin exudate and rimmed by a narrow zone of erythema
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Aphthous ulcers
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Inflammatory infiltrate of a shallow, hyperemic ulceration often on inner surface of lips = mononuclear, secondary bacterial infection introduces neutrophils
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Aphthous ulcers
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Atrophy of the papillae of the tongue, thinning of the mucosa - exposing the underlying vasculature
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Beefy-red tongue appearance of glossitis
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Vitamin B12 (pernicious anemia), riboflavin, niacin, pyrodixine, deficiency, sprue, iron-deficiency anemia
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Glossitis
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Combination of iron-deficiency anemia, glossitis, and esophageal dysphagia
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Plummer-Vinson or Paterson-Kelly syndrome
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Ulcerative lesions associated with jagged carious teeth, ill-fitting dentures, and, rarely, with syphillis, inhalation burns, or ingestion of corrosive chemicals
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Glossitis
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Most common orofacial herpetic infection
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HSV-1
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Viral infection of children age 2-4 years, asymptomatic, no significant morbidity; may reactivate later in adulthood as vesicular ulcerous lesions
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HSV-1
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Acute herpetic gingivostomatitis
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In 10-20% of HSV-1 infections, abrupt onset of vesicles and ulcerations throughout the oral cavity, esp. the gingiva
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Painful, red-rimmed, and shallow ulcerations; eosinophilic intranuclear viral inclusions or multinucleate polykaryons
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HSV-1
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Tzanck test
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Microscopic examination of the vesicular fluid of oral, serous ulcers for the detection of HSV-1 viral inclusions
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Spontaneously clear within 3-4 weeks, but virus remains dormant in the local trigeminal ganglia
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HSV-1
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Trauma, allergies, exposure to UV light, upper respiratory tract infections, pregnancy, menstruation, immunosuppression, and excessive exposure to heat or cold
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Possible influences predisposing to activation of latent HSV-1
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Herpes zoster, EBV (mononucleosis), CMV, enterovirus (herpangina, hand-foot-and-mouth dz, acute lymphonodular pharyngitis), and rubeola (measles)
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Other viral infection besides HSV that may present in the head and neck region
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The most common fungal infxn in the oral cavity
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Candidiasis/Thrush
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Candida albicans is a normal component of the oral flora in __% of the population.
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Candida albicans is a normal component of the oral flora in 50% of the population.
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3 factors that influence the likelihood of clinical Candida infxn
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(1) immune status of the individual (2) the strain of C. albicans present; and (3) the composition of an individual's oral flora
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Another name for the "thrush" form of candidiasis
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Pseudomembranbous candidiasis
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Superficial, curdy, gray to white inflammatory membrane composed of matted organisms enmeshed in a fibrinosuppurative exudate that can be readily scraped off
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Candida albicans
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DM, organ or bone marrow transplant recipients, those with neutropenia, chemotherapy-induced immunosuppression, or AIDS patients are at risk of what normal inhabitant of the oral cavity?
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Candida albicans
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80% of patients with hairy leukoplakia have been infected with ___
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80% of patients with hairy leukoplakia have been infected with HIV
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White, confluent patches of fluffy hyperkeratotic thickenings on the lateral border of the tongue
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Hairy leukoplakia
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Hyperpkeratosis and acnathosis with "balloon cells" in the upper spinous layer, with koilocytosis suggestive of HPV infection
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No HPV, this is hairy leukoplakia
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Premalignant oral cavity lesions
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Leokoplakia and erythroplakia
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Defined by the WHO, "a white patch of plaque that *cannot be scraped off* and cannot be characterized clinically or pathologically as any other disease"
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Leukoplakia
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How often are leukoplakias actually premalignant?
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Somewhere between 5% and 25% of these lesions are premalignant - and without histologic evaluation, all leukoplakias must be considered precancerous.
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Less common, much more ominous; red, velvety, possibly eroded area within the oral cavity; epithelium is atypiocal
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Erythroplakia
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2:1 male preponderance, tobacco is the most common antecedent, usually between ages 40 and 70
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Leokoplakia and erythroplakia
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95% or cancers of the head and neck are ________.
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95% or cancers of the head and neck are squamous cell carcinomas.
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"Field cancerization"
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Multiple individual primary tumors develop independently in the upper aerodigestive tract as a result of years of chronic exposure of the mucosa to carcinogens.
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In N. America and Europe, squamous cell carcinoma of the oral cavity is most commonly associated with...
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...middle-aged men who have been chronic abusers of smoked tobacco and alcohol.
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Predisposing factors of squamous cell carcinoma of the lower lip
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Actinic radiation (sun light) and pipe smoking
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Outside of N. America and Europe, major predisposing influences of head and neck squamous cell carcinoma...
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...chewing betel quid and paan in India and parts of Asia.
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Favored locations of squamous cell carcinoma of the head and neck to develop
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(1) ventral surface of the tongue (2) floor of the mouth (3) lower lip (4) soft palate (5) gingiva
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Ulcerated, protruding masses that have irregular, firm, and indurated borders
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Head and neck squamous cell carcinoma
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Normal progression to SCC
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Normal --> hyperplasia/hyperkeratosis --> mild/moderate dysplasia --> severe, full thickness dysplasia/CIS --> SCC
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Local metastasis of SCC of the head and neck?
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Cervical lymph nodes
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Distant metastasis of SCC of the head and neck?
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Mediastinal lymph nodes, lungs, liver, and bones
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Dry mouth (xerostomia) and dry eyes (keratoconjunctivitis sicca) is a major feature of what autoimmune disorder?
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Sjorgen syndrome; a lack of salivary secretions can also be a complication of radiation therapy
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Sialadenitis can be caused by...
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..traumatic, viral, bacterial, or autoimmune origin.
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Most common viral sialadenitis
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Mumps, usually parotid glands = epidemic parotitis
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The most common lesion of the salivary glands
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Mucocele, results from either blockage or rupture of a salivary gland duct, with consequent leakage of saliva into the surrounding connective tissue stroma
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Where do you most commonly find mucoceles?
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The lower lips of toddlers, geriatric patients, and young adults who recently had trauma to that region
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Fluctuant swelling of the lower lip with blue translucent hue; fluctuating size, often associated with meals
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Mucocele
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What's inside a mucocele?
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Mucin; tx with complete excision of the cyst with the minor salivary gland lobule of origin may be req'd
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Sialolithiasis
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Salivary duct obstruction that increases risk of secondary bacterial sialadenitis, esp. submandibular glands
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Most common offenders of bacterial sialadenitis
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S. aureus and Streptococcus viridans
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General rule of salivary gland malignancies
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The likelihood of a salivary gland tumor being malignant is more or less inversely proportional to the size of the gland
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Warthin tumors are more common in....
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...males.
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Benign salivary gland tumors occur most often in the ____ decades of life.
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Benign salivary gland tumors occur most often in the fifth to seventh decades of life.
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Where are the parotid glands?
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In front of and below the ears
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Most common salivary gland tumor?
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Pleomorphic adenoma; a mixed tumor of ductal (epithelial) and myoepithelial cells, thus showing both epithelial and mesenchymal differentiation.
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Radiation exposure increases risk of what benign salivary gland neoplasm?
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Pleomorphic adenoma
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Painless, benign, slow-growing, mobile discrete masses within the parotid gland
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Pleomorphic adenoma; may become a carcinoma ex pleomorphic adenoma with 10% risk of PA is kept for more than 15 years
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Second most common salivary gland neoplasm; almost always appears in the parotid gland; males>females; smokers at increased risk
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Warthin tumor
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Mixture of squamous cells, mucus-secreting cells, and intermediate cells; 15% of all salviary gland tumors; parotids; most common primary malignant tumor of the salivary glands
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Mucoepidermoid carcinoma
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Minor salivary gland tumor, malignant
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Adenoid cystic carcinoma
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Intraoral purpuric discoloration or violacesous raised nodular mass; associated with AIDS and HIV; HHV8; LANA-1
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Kaposi Sarcoma
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Necrotizing nasal lesions
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1. spreading fungal infections (mucromycosis)
2. wegner granulomatosis 3. lethal midline granuloma, polymorphic reticulosis, neoplasm of NK cells |
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Distinctive geographic distribution, EBV; close anatomic relation to lymphoid tissue; three patterns relating to squamous cell carcinoma and undiff. carcinomas; African children, Southern Chinese adults; nasopharynx, tonsils, posterior tongue, and upper airways; tx via radiotherapy; PAP stain
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Nasopharyngeal Carcinoma
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Arising in extradrenal paraganglia; clusters of neuroendocrine cells; bifurcation of common carotid; 6th decode of life; sporadic or MEN2 syndrome; may metastasize
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Paraganglioma/Carotid body tumor
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Benign cyst; anterolateral aspect of neck; remnants of branchial arch or salivary gland inclusions; squamous or columnar lining with mural lymphoid infiltrate; tx with surgery
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Branchial cleft cyst
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Midline developmental cyst lined by respiratory type or squamous epitheliuml wall contains lymphoid tissue, thyroid tissue, glands; complications include abscess formation or papillary ca; tx with surgical excisision
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Thyroglossal duct cyst
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Benign lymphoepithelial lesions are associated with what autoimmune d/o?
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Sjogren's syndrome
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Nonneoplastic uni or bilateral enlargement of parotid or other salivary glands; may be isolated or associated with Sjogren's; F>M; 5th decade of life; dense lyumphoid proliferation within gland
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Benign lymphoepithelial lesions
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Cystic enlargement of parotid gland; associated with HIV; multiple and bilateral; pathogenesis: duct obstrxn due to lymphoid hyperplasia or duct destrxn
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Benign lymphoepithelial cysts
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