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73 Cards in this Set

  • Front
  • Back
Most common fibrous proliferative lesion of the oral cavity
61% fibroma, 22% peripheral ossifying fibroma, 12% pyogenic granuloma, 5% peripheral giant cell granuloma
Most common inflammatory/reactive ulcerations of the oral cavity
Traumatic and aphthous ulcers
Lesion in buccal mucosa along bite line or at gingival margin
Irritation fibroma
Nodular mass of fibrous tissue, few inflammatory cells, covered by squamous mucosa, tx with surgical excision
Irritation fibroma
Highly vascular peduncular lesion (similar to granulation tissue), occurring in the gingiva of children, young adults, and pregnant women
Pyogenic granuloma
Red to purple in color, growth may be rapid, could this be a malignant neoplasm of the oral cavity?
Pyogenic granuloma
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
Aphthous ulcers
Single or multiple, shallow, hyperemic ulcerations covered by thin exudate and rimmed by a narrow zone of erythema
Aphthous ulcers
Inflammatory infiltrate of a shallow, hyperemic ulceration often on inner surface of lips = mononuclear, secondary bacterial infection introduces neutrophils
Aphthous ulcers
Atrophy of the papillae of the tongue, thinning of the mucosa - exposing the underlying vasculature
Beefy-red tongue appearance of glossitis
Vitamin B12 (pernicious anemia), riboflavin, niacin, pyrodixine, deficiency, sprue, iron-deficiency anemia
Glossitis
Combination of iron-deficiency anemia, glossitis, and esophageal dysphagia
Plummer-Vinson or Paterson-Kelly syndrome
Ulcerative lesions associated with jagged carious teeth, ill-fitting dentures, and, rarely, with syphillis, inhalation burns, or ingestion of corrosive chemicals
Glossitis
Most common orofacial herpetic infection
HSV-1
Viral infection of children age 2-4 years, asymptomatic, no significant morbidity; may reactivate later in adulthood as vesicular ulcerous lesions
HSV-1
Acute herpetic gingivostomatitis
In 10-20% of HSV-1 infections, abrupt onset of vesicles and ulcerations throughout the oral cavity, esp. the gingiva
Painful, red-rimmed, and shallow ulcerations; eosinophilic intranuclear viral inclusions or multinucleate polykaryons
HSV-1
Tzanck test
Microscopic examination of the vesicular fluid of oral, serous ulcers for the detection of HSV-1 viral inclusions
Spontaneously clear within 3-4 weeks, but virus remains dormant in the local trigeminal ganglia
HSV-1
Trauma, allergies, exposure to UV light, upper respiratory tract infections, pregnancy, menstruation, immunosuppression, and excessive exposure to heat or cold
Possible influences predisposing to activation of latent HSV-1
Herpes zoster, EBV (mononucleosis), CMV, enterovirus (herpangina, hand-foot-and-mouth dz, acute lymphonodular pharyngitis), and rubeola (measles)
Other viral infection besides HSV that may present in the head and neck region
The most common fungal infxn in the oral cavity
Candidiasis/Thrush
Candida albicans is a normal component of the oral flora in __% of the population.
Candida albicans is a normal component of the oral flora in 50% of the population.
3 factors that influence the likelihood of clinical Candida infxn
(1) immune status of the individual (2) the strain of C. albicans present; and (3) the composition of an individual's oral flora
Another name for the "thrush" form of candidiasis
Pseudomembranbous candidiasis
Superficial, curdy, gray to white inflammatory membrane composed of matted organisms enmeshed in a fibrinosuppurative exudate that can be readily scraped off
Candida albicans
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?
Candida albicans
80% of patients with hairy leukoplakia have been infected with ___
80% of patients with hairy leukoplakia have been infected with HIV
White, confluent patches of fluffy hyperkeratotic thickenings on the lateral border of the tongue
Hairy leukoplakia
Hyperpkeratosis and acnathosis with "balloon cells" in the upper spinous layer, with koilocytosis suggestive of HPV infection
No HPV, this is hairy leukoplakia
Premalignant oral cavity lesions
Leokoplakia and erythroplakia
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"
Leukoplakia
How often are leukoplakias actually premalignant?
Somewhere between 5% and 25% of these lesions are premalignant - and without histologic evaluation, all leukoplakias must be considered precancerous.
Less common, much more ominous; red, velvety, possibly eroded area within the oral cavity; epithelium is atypiocal
Erythroplakia
2:1 male preponderance, tobacco is the most common antecedent, usually between ages 40 and 70
Leokoplakia and erythroplakia
95% or cancers of the head and neck are ________.
95% or cancers of the head and neck are squamous cell carcinomas.
"Field cancerization"
Multiple individual primary tumors develop independently in the upper aerodigestive tract as a result of years of chronic exposure of the mucosa to carcinogens.
In N. America and Europe, squamous cell carcinoma of the oral cavity is most commonly associated with...
...middle-aged men who have been chronic abusers of smoked tobacco and alcohol.
Predisposing factors of squamous cell carcinoma of the lower lip
Actinic radiation (sun light) and pipe smoking
Outside of N. America and Europe, major predisposing influences of head and neck squamous cell carcinoma...
...chewing betel quid and paan in India and parts of Asia.
Favored locations of squamous cell carcinoma of the head and neck to develop
(1) ventral surface of the tongue (2) floor of the mouth (3) lower lip (4) soft palate (5) gingiva
Ulcerated, protruding masses that have irregular, firm, and indurated borders
Head and neck squamous cell carcinoma
Normal progression to SCC
Normal --> hyperplasia/hyperkeratosis --> mild/moderate dysplasia --> severe, full thickness dysplasia/CIS --> SCC
Local metastasis of SCC of the head and neck?
Cervical lymph nodes
Distant metastasis of SCC of the head and neck?
Mediastinal lymph nodes, lungs, liver, and bones
Dry mouth (xerostomia) and dry eyes (keratoconjunctivitis sicca) is a major feature of what autoimmune disorder?
Sjorgen syndrome; a lack of salivary secretions can also be a complication of radiation therapy
Sialadenitis can be caused by...
..traumatic, viral, bacterial, or autoimmune origin.
Most common viral sialadenitis
Mumps, usually parotid glands = epidemic parotitis
The most common lesion of the salivary glands
Mucocele, results from either blockage or rupture of a salivary gland duct, with consequent leakage of saliva into the surrounding connective tissue stroma
Where do you most commonly find mucoceles?
The lower lips of toddlers, geriatric patients, and young adults who recently had trauma to that region
Fluctuant swelling of the lower lip with blue translucent hue; fluctuating size, often associated with meals
Mucocele
What's inside a mucocele?
Mucin; tx with complete excision of the cyst with the minor salivary gland lobule of origin may be req'd
Sialolithiasis
Salivary duct obstruction that increases risk of secondary bacterial sialadenitis, esp. submandibular glands
Most common offenders of bacterial sialadenitis
S. aureus and Streptococcus viridans
General rule of salivary gland malignancies
The likelihood of a salivary gland tumor being malignant is more or less inversely proportional to the size of the gland
Warthin tumors are more common in....
...males.
Benign salivary gland tumors occur most often in the ____ decades of life.
Benign salivary gland tumors occur most often in the fifth to seventh decades of life.
Where are the parotid glands?
In front of and below the ears
Most common salivary gland tumor?
Pleomorphic adenoma; a mixed tumor of ductal (epithelial) and myoepithelial cells, thus showing both epithelial and mesenchymal differentiation.
Radiation exposure increases risk of what benign salivary gland neoplasm?
Pleomorphic adenoma
Painless, benign, slow-growing, mobile discrete masses within the parotid gland
Pleomorphic adenoma; may become a carcinoma ex pleomorphic adenoma with 10% risk of PA is kept for more than 15 years
Second most common salivary gland neoplasm; almost always appears in the parotid gland; males>females; smokers at increased risk
Warthin tumor
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
Mucoepidermoid carcinoma
Minor salivary gland tumor, malignant
Adenoid cystic carcinoma
Intraoral purpuric discoloration or violacesous raised nodular mass; associated with AIDS and HIV; HHV8; LANA-1
Kaposi Sarcoma
Necrotizing nasal lesions
1. spreading fungal infections (mucromycosis)
2. wegner granulomatosis
3. lethal midline granuloma, polymorphic reticulosis, neoplasm of NK cells
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
Nasopharyngeal Carcinoma
Arising in extradrenal paraganglia; clusters of neuroendocrine cells; bifurcation of common carotid; 6th decode of life; sporadic or MEN2 syndrome; may metastasize
Paraganglioma/Carotid body tumor
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
Branchial cleft cyst
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
Thyroglossal duct cyst
Benign lymphoepithelial lesions are associated with what autoimmune d/o?
Sjogren's syndrome
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
Benign lymphoepithelial lesions
Cystic enlargement of parotid gland; associated with HIV; multiple and bilateral; pathogenesis: duct obstrxn due to lymphoid hyperplasia or duct destrxn
Benign lymphoepithelial cysts