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Oral Pathology > Bacterial Infections > Flashcards

Bacterial Infections Flashcards

1
Q

Superficial skin infection; most common in children with poor hygeine, crowed living conditions, hot and humid climates

A

impetigo

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2
Q

which microbes caused impetigo?

A

Streptococcus pyogenes, Staphylococcus aureus

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3
Q

Clinical presentation of _?: arises in areas of trauma, vesicles or bullae that rupture, leaving an amber or honey colored crust, pruritis and lymphadenopathy may be present

A

impetigo

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4
Q
A

impetigo

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5
Q

Patients with streptococcal tonsillitis and pharyngitis (strep throat) are at risk for _ or _ and _

A

scarlet fever, post-infectious rheumatic fever and glomerulonephritis

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6
Q

What condition/s commonly caused by A beta-hemolytic streptococci; also adenoviruses, enteroviruses, Epstein-Barr virus

A

streptococcal tonsillitis and pharyngitis (strep throat)

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7
Q

Clinical presentation of _: sore throat, dysphagia, redness, tonsillar hyperplasia, exudate, fever, cervial lymphadenopathy

A

streptococcal tonsillitis

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8
Q
A

streptococcal tonsillitis

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9
Q

Appropriate therapy of streptococcal tonsillitis within _ days will prevent the development of rheumatic fever

A

9

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10
Q

calcified structures that develop within tonsillar crypts; originate from a nidus of cellular and food debris, bacterial colonies

A

tonsillolithiasis

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11
Q
A

tonsillolithiasis

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12
Q
A

tonsillolithiasis

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13
Q

Which spirochete causes syphilis?

A

Treponema pallidum

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14
Q

Spread by intimate sexual contact, transplacental transmission, contaminated blood exposure; 3 stages (primary, secondary, tertiary); congenital

A

syphilis

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15
Q

Latent phase (1-30 yrs) of syphilis occurs between _ and _ phases

A

secondary and tertiary

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16
Q

Which phase of syphilis?: relatively painless ulceration- chancre, 2-3 weeks after exposure, most are genital (5% are oral), resolves in 3-8 weeks

A

primary

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17
Q

which phase of syphilis?

A

primary

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18
Q

which phase of syphilis?: erythematous maculopapular cutaneous eruption, mucous patches of oral mucosa, fever, malaise, headache, musculoskeletal pain

A

secondary

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19
Q

Associated with secondary phase of syphilis

A

condylomata lata

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20
Q

Widespread disease seen in secondary syphilis in the immunocompromised; prodrome of fever, headache, myalgia, necrotic ulcerations of the skin and oral cavity, malaise, pain, arthralgia

A

lues maligna

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21
Q

which phase of syphilis?: gumma formation, leutic glossitis, may affect any tissue, palatal perforation, aneurysm of the ascending aorta, neurosyphilis (psychosis, dementia, death)

A

tertiary

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22
Q

associated with tertiary syphilis

A

leutic glossitis

23
Q

Hutchinson’s triad, saddle-nose deformity, saber shins

A

congenital syphilis

24
Q

Hutchinson’s triad?

A

incisors and molars malformed, interstitial keratitis, eighth nerve deafness

25
Q

associated with congenital syphilis

A

hutchinson’s incisors

26
Q

associated with congenital syphilis

A

mulberry molars

27
Q

associated with congenital syphilis

A

saddle-nose deformity

28
Q

spirochete (syphilis) seen in _ stain

A

Warthin-Starry

29
Q

Diagnosis of syphilis: screening tests are _ and _; specific antibody tests are _ and _

A

VDRL and RPR

FTA-ABS and TPHA

30
Q

which microbe is responsible for TB

A

Mycobacterium tuberculosis

31
Q

droplet transmission; resurged in 1980, with subsequent decline since 1993 due to greater emphasis on control and prevention

A

TB

32
Q

Primary TB; combination of lymph node involvement and primary lesion of lung

A

Ghon complex

33
Q

_ TB: with active disease (<5%), low grade fever, night sweats, fatigue

A

secondary

34
Q

Lupus vulgaris; weight loss (“consumption”), chronic bloody cough, chest pain, scrofula

A

TB

35
Q

_ TB: widely disseminated

A

miliary

36
Q

associated with _

A

TB

37
Q

Oral lesions of _: rather rare, solitary painless ulcerations; most common on tongue, hematogenous spread or direct implantation

A

TB

38
Q

netrotized granulomatous inflammation; multinucleated giant cells; demonstrated by acid-fast method

A

TB

39
Q

TB treatment often combo of antibiotics including: _, _, _ and _

A

isoniazied, streptomycin, rifampin, ethambutol

40
Q

associated with local traumal; abdominal, thoracic, cervicofacial sites; clinical features: may follow dental extraction or untreated dental disease, diffuse swelling and erythema, draining sinus tracts, “sulfur granules”

A

actinomycosis

41
Q

filamentous bacteria froming colonies; bacterial colonies surrounded by neutrophils; adjacent tissue may show fibrosis or granulation tissure

A

actinomycosis

42
Q
A

actinomycosis

43
Q

Treatment of Actino: typically _ to _ weeks (up to _ months in severs cases) of PCN

A

5 to 6; 12

44
Q

Cat scratch disease caused by _

A

Bartonella henselae

45
Q

22,000 cases annually in US (most common cause of chronic regional lymphadenopathy in children; male predilection, <21 yrs of age; erythematous papule at site; followed by tender lymphadenopathy; fever, malaise and fatigue

A

Cat Scratch

46
Q

stellate areas of necrosis surrounded by a band of histiocytes and neutrophils; localized to lymph nodes; staing with Warthin-Starry stain shows pleomorphic bacillus

A

Cat Scratch

47
Q

_ antibody test for cat scratch

A

fluorescent

48
Q

common infectino secondary to breakdown in the normal scretion elimination system; predisposing factors: typically upper viral respiratory infection

A

sinusitis

49
Q

microbes assoicated with sinusitis:

A

Strep. pneumoniae; H. influenzae

50
Q

headache, fever, facial pain, malaise, nasal discharge, may mimic toothache

A

acute sinusitis

51
Q

symptoms longer than 3 months, possible pain, pressure, cloudy density to radiograph

A

chronic sinusitis

52
Q
A

chronic sinusitis

53
Q
A

Oral Pathology (11 decks)

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