Head and Neck

Question 1

Biofilm of bacteria, salivary proteins, and desquamated epithelial cells

Answer 1

Plaque

Question 2

A calcified plaque

Answer 2

Calculus or tartar

Question 3

Microorganisms associated with periodontitis (inflammation of periodontal ligaments, alveolar bone, and cementum)

Answer 3

Aggregatibacter (Actinobacillus), Porphyromonas, Prevotella

Question 4

Clinical significance of periodontitis

Answer 4

Origin of IE and pulmonary and brain abscess

Question 5

Immunologic disorders associated with aphthous ulcers

Answer 5

Celiac disease, IBD, and Behcet’s disease

Question 6

Used in diagnosing acute herpetic gingivostomatitis or recurrent herpetic stomatitis

Answer 6

Tzanck smear

Question 7

Which is more ominous for malignancy, leukoplakia or erythroplakia?

Answer 7

Erythroplakia

Question 8

95% of head and neck cancers

Answer 8

SCCA (squa-CA)

Question 9

Type of odontogenic cyst associated with impacted third molar

Answer 9

Dentigirous cyst

Question 10

Type of odontogenic cyst that is locally aggressive

Answer 10

Odontogenic keratocyst

Question 11

Possible CA in patients with multiple odontogenic keratocysts

Answer 11

Nevoid BCCA syndrome (Gorlin syndrome)

Question 12

Most common type of odontogenic tumor

Answer 12

Odontoma

Question 13

Nasopharyngeal benign tumor associated with low risk HPV (6 and 11)

Answer 13

Inverted sinonasal (Schneiderian) papilloma

Question 14

Peculiar about the prognosis of NPCA

Answer 14

With the same stage, undifferentiated has a better prognosis than differentiated / keratinizing because it is radiosensitive

Question 15

Most common primary bacterial causes of OM

Answer 15

Strep pneumoniae, non-typeable H. influenzae, M. catarrhalis

Question 16

Most common origin of branchial cleft cyst

Answer 16

Remnant of second branchial arch

Question 17

Most common congenital anomaly of the thyroid gland

Answer 17

Thyroglossal duct cyst

Question 18

Treatment for thyroglossal duct cyst

Answer 18

Sistrunk procedure

Question 19

“Extra-adrenal pheochromocytoma”

Answer 19

Paraganglioma

Question 20

More common type of non-adrenal paraganglioma

Answer 20

Aorticopulmonary chain (esp carotid bodies, more often chromaffin negative and more parasympathetic effects)

Question 21

Morphology of paraganglioma

Answer 21

Zellballen

Question 22

Most common cause of xerostomia

Answer 22

Drugs (anticholinergic, antihistamine, antipsychotic, antidepressants)

Question 23

Most common type of inflammatory salivary gland lesion and most common salivary gland lesion

Answer 23

Mucocele

Question 24

True cysts with epithelial lining when sublingual gland is damaged

Answer 24

Ranula

Question 25

Most common site of salivary gland tumor regardless of behavior

Answer 25

Parotid (the likelihood of malignancy is inversely proportional to size of gland)

Question 26

Incidence of salivary gland tumors

Answer 26

Pleomorphic adenoma (2nd most common benign is Warthin, while mucoepidermoid CA is most common primary malignant)

Question 27

Aka papillary cystadenoma lymphomatosum, characterized by doube-layer of oncocytic epithelial cells

Answer 27

Warthin tumor

Question 28

Salivary gland tumor found in the minor (palatine) glands with perineural invasion

Answer 28

Adenoid cystic CA (but most common primary malignant is mucoepidermoid CA)