microbiology

Question 1

sialadenitis

Answer 1

most commonly due to stone –> s. aureus infection (unilateral»>)

Question 2

oral herpes

Answer 2

HSV-1

primary infection in childhood- dormant in ganglia of CN V

Question 3

candida albicans

Answer 3

oral thrush (easy scape off tongue)

Question 4

hairy leukoplakia

Answer 4

white, rough hairy patch on lateral tongue due to…

EBV- induced squamous cell hyperplasia (not pre-malignant)

Question 5

chagas disease

Answer 5

trypanosoma cruzi

Question 6

scabies

Answer 6

tx- permethrim (topical) or ivermectin (topical or PO) or benzyl benzoate (topical)

type IV HSR to the deposition of eggs and feces - pruritic rash on webs of fingers and toes, axilla, flexor surfaces of wrist, waist, around umbilicus, areolae, groin; homeless shelters, poor hygiene, overcrowding

mite infestation of the skin caused by the arthropod sarcoptes scabiei

Question 7

poison ivy/oak -oil

Answer 7

urushiol (t4 HSR)