15 - Head and neck Flashcards

1
Q

Main cause of tooth loss before 35

A

dental carries

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2
Q

Most common oral fungal infection:

A

Candida albicans

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3
Q

Sixth most common neoplasm in the world:

A

squamous cell carcinoma (in the head and neck)

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4
Q

Most common type of cancer in the head and neck:

A

squamous cell carcinoma (95%)

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5
Q

Most common type of odontogenic tumor:

A

odontoma

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6
Q

Most common histology of laryngeal carcinoma:

A

squamous cell carninoma

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7
Q

Which branchial arch most commonly leads to a branchial cleft cyst?

A

second branchial arch

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8
Q

Most common congenital anomaly of the thyroid gland

A

thyroglossal duct cyst

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9
Q

-Most common location o f paragangliomas:

A

adrenal medulla (pheochromocytoma)

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10
Q

Most common cause of xerostomia:

A

drugs (e.g. anticholinergics, antihistamine, antipsychotics, antidepressants)

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11
Q

Most common type of inflammatory salivary gland:

A

mucocele

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12
Q

most common salivary gland lesion:

A

mucocele

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13
Q

Most common form of viral sialadenitis:

A

mumps

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14
Q

Most common site of tumors (regardless of behavior):

A

parotid gland

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15
Q

Most common gland involved in mumps:

A

parotid gland

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16
Q

Most common gland involved in sialolithiasis:

A

submandibular

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17
Q

Most common microorganisms (2) implicated in sialolithiasis

A

Staphylococcus aureus and viridans streptococcus

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18
Q

Most common tumor of the salivary glands:

A

Pleomorphic adenoma

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19
Q

Most common benign tumor of the salivary glands:

A

Pleomorphic adenoma

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20
Q

Second most common benign tumor of the salivary glands:

A

Warthin tumor

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21
Q

Most common primary malignant tumor of the salivary glands:

A

mucoepidermoid carcinoma

22
Q

Main cause of tooth loss before age 35.

A

Dental caries

23
Q

Main consequences of gingivitis.

A

Plaque and calculus

24
Q

Fibrous proliferative lesion usually occurring in children, adults and pregnant women (pregnancy tumor); histologically, characterized by organizing granulation tissue (highly vascular).

A

Pyogenic granuloma

25
Q

Most common oral fungal infection.

A

Candidiasis

26
Q

Characterized by vesicle formation; histologically characterized by ballooned cells with large eosinophilic intranuclear inclusions (Cowdry Type A inclusion bodies).

A

Herpetic gingivostomatitis

27
Q

A white/red plaque that cannot be scraped off; considered precancerous unless proven otherwise; the red plaque is more associated with malignancy than the white plaque; most common risk factor is cigarette smoking.

A

Leukoplakia/Erythroplakia

28
Q

Most common histologic type of oral cavity cancer.

A

Squamous cell carcinoma

29
Q

Most common benign tumor of the salivary gland; histologically characterized by epithelial elements arranged in ducts, acini, irregular tubules, strands, or even sheets, in a mesenchyme-like background of loose myxoid tissue containing islands of chondroid and rarely, foci of bone; locally invasive.

A

Pleomorphic adenoma

30
Q

The most common primary malignant tumor of salivary glands composed of mucous and squamous cells.

A

Mucoepidermoid carcinoma

31
Q

Most common epithelial odontogenic tumor that arises from odontogenic epithelium that does not demonstrate extomesenchymal differentiation; locally invasive.

A

Ameloblastoma

32
Q

Rare neoplasm with strong links to EBV and high frequency among the Chinese population. Characterized by large epithelial cells having indistinct borders (syncytial growth) and prominent eosinophilic nucleoli.

A

Nasopharyngeal carcinoma

33
Q

A benign neoplasm usually on the true vocal cords that forms a soft, raspberry-like excresence rarely more then 1 cm in diameter; consists of multiple, slender, finger-like projections.

A

Laryngeal papilloma

34
Q

Most common symptom of laryngeal carcinoma.

A

Persistent hoarseness

35
Q

Common etiologic agents implicated in laryngeal carcinoma

A

Smoking, alcohol, asbestos, radiation, HPV

36
Q

Most common histologic type of laryngeal carcinoma

A

Squamous cell carcinoma (95%)

37
Q

Most common location of laryngeal carcinoma

A

Glottic (60-75%)

38
Q

Most common cause of otitis media.

A

Viral

39
Q

Most common primary bacterial causes of acute otitis media.

A

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

40
Q

Most common causes of chronic otitis media.

A

P. aeruginosa, S. aureus, fungus, mixed

41
Q

Complications of otitis media.

A

Brain abscess and cholesteatoma

42
Q

True cyst arising from remnant of second branchial arch (most common); clinically presents as upper lateral neck mass along SCM.

A

Branchial cleft cyst

43
Q

Most common congenital anomaly of thyroid gland; arising from remnants of thyroid gland descent; clinically present as a midline mass along the track of descent of the thyroid gland; treatment of choice is Sistrunk procedure.

A

Thyroglossal duct cyst

44
Q

Neuroendocrine neoplasm associated with ANS; basically, an extra-adrenal pheochromocytoma (histologically); can be located paravertebral (sympathetic), or in aorticopulmonary chain (parasympathetic).

A

Paranganglioma

45
Q

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

A

Mucocele

46
Q

Most common form of viral sialadenitis; most common gland involved: parotid.

A

Mumps

47
Q

Most common gland involved in sialolithiasis.

A

Submandibular

48
Q

Most common site of tumors regardless of behavior.

A

Parotid gland

49
Q

Most common tumor of the salivary gland; also the most common benign tumor.

A

Pleomorphic adenoma

50
Q

Most common primary malignant tumor of the salivary gland; and the second most common tumor.

A

Mucoepidermoid carcinoma

51
Q

Second most common benign tumor of the salivary gland, with high association with smoking.

A

Warthin tumor (Papillary cystadenoma lymphomatosum)

52
Q

Highly aggressive malignancy of the salivary gland, with high propensity for perinueral invasion, and high occurrence of distant metastasis.

A

Adenoid cystic carcinoma