Head and Neck Flashcards
Biofilm of bacteria, salivary proteins, and desquamated epithelial cells
Plaque
A calcified plaque
Calculus or tartar
Microorganisms associated with periodontitis (inflammation of periodontal ligaments, alveolar bone, and cementum)
Aggregatibacter (Actinobacillus), Porphyromonas, Prevotella
Clinical significance of periodontitis
Origin of IE and pulmonary and brain abscess
Immunologic disorders associated with aphthous ulcers
Celiac disease, IBD, and Behcet’s disease
Used in diagnosing acute herpetic gingivostomatitis or recurrent herpetic stomatitis
Tzanck smear
Which is more ominous for malignancy, leukoplakia or erythroplakia?
Erythroplakia
95% of head and neck cancers
SCCA (squa-CA)
Type of odontogenic cyst associated with impacted third molar
Dentigirous cyst
Type of odontogenic cyst that is locally aggressive
Odontogenic keratocyst
Possible CA in patients with multiple odontogenic keratocysts
Nevoid BCCA syndrome (Gorlin syndrome)
Most common type of odontogenic tumor
Odontoma
Nasopharyngeal benign tumor associated with low risk HPV (6 and 11)
Inverted sinonasal (Schneiderian) papilloma
Peculiar about the prognosis of NPCA
With the same stage, undifferentiated has a better prognosis than differentiated / keratinizing because it is radiosensitive
Most common primary bacterial causes of OM
Strep pneumoniae, non-typeable H. influenzae, M. catarrhalis
Most common origin of branchial cleft cyst
Remnant of second branchial arch
Most common congenital anomaly of the thyroid gland
Thyroglossal duct cyst
Treatment for thyroglossal duct cyst
Sistrunk procedure
“Extra-adrenal pheochromocytoma”
Paraganglioma
More common type of non-adrenal paraganglioma
Aorticopulmonary chain (esp carotid bodies, more often chromaffin negative and more parasympathetic effects)
Morphology of paraganglioma
Zellballen
Most common cause of xerostomia
Drugs (anticholinergic, antihistamine, antipsychotic, antidepressants)
Most common type of inflammatory salivary gland lesion and most common salivary gland lesion
Mucocele
True cysts with epithelial lining when sublingual gland is damaged
Ranula
Most common site of salivary gland tumor regardless of behavior
Parotid (the likelihood of malignancy is inversely proportional to size of gland)
Incidence of salivary gland tumors
Pleomorphic adenoma (2nd most common benign is Warthin, while mucoepidermoid CA is most common primary malignant)
Aka papillary cystadenoma lymphomatosum, characterized by doube-layer of oncocytic epithelial cells
Warthin tumor
Salivary gland tumor found in the minor (palatine) glands with perineural invasion
Adenoid cystic CA (but most common primary malignant is mucoepidermoid CA)
