Viral Exanthems Flashcards
what is viral exanthem
widespread skin rash triggered by viral infection
who is more likely to get viral exanthems
more children than adults
what do the skin lesions look like in Molluscum Contagiosum
-discrete dome-shaped, pink , waxy, umbilicated papules which contain a caseous plug
where are the skin lesion found on the body in Molluscum Contagiosum
face, trunk, extremities
how is Molluscum contagiosum spread
direct person-person contact
- contact with contaminated objects such as towel
who usually gets Molluscum contagiosum
children ( contact) young adults ( sexual contact)
how is Molluscum contagiosum treated ? genital lesion
self-limited and lesions heal spontaneously after several months
genital lesions: should be treated to prevent spread
what can physically destroy Molluscum contagiosum
curettage
cryotherapy
what are the causative agents for Hand-Foot-and mouth- disease
Coxsackievirus A type 16 other Coxsackieviruses enterovirus 71 (EV71)
Hand-Foot-and mouth- disease: where do mucocutaneous manifestations first occur
macular lesions on buccal mucosa, tongue, hard palate, which progress to vesicles that erode surrounded by erythematous halo
what other parts of the body might be involved in Hand-Foot-and mouth- disease
feet, buttocks, genitalia
what are some systemic signs and symptoms for Hand-Foot-and mouth- disease
sore throat
malaise
fever
vomiting if caused by EV-71
If EV-71 cause of Hand-Foot-and mouth- disease what are some symptoms
vomiting
poliolike syndrome
aseptic meningitis
encephalitis
what is the prognosis for Hand-Foot-and mouth- disease
usually mild and self-limited
what is the treatment for Hand-Foot-and mouth- disease
supportive
what are causative agents for HSV1 and 2
large, enveloped dsDNA virus
where does HSV-1 reside
trigeminal ganglion
where does HSV-2 resdie
sacral ganglion
where does HSV travel for reoccurance
migrates along peripheral sensory nerve
what can cause HSV reactivation
UV light
stress
hormonal changes
where does HSV-1 breakouts usullay occur
oral
where does HSV 2 breakouts usually occur
genital
what are the mucocutaneous manifestations for HSV 1,2
‘Dewdrop on rose petal”
gray-white ulcer
painful
how can baby get HSV
vaginal delivery
which eruptions are more severe, primary or recurrence
primary
what are the lab diagnosis for HSV
Direct microscopy: multinucleated gaint cells on Tzanck smear
- cell culture
- PCR
- serology
how do you treat HSV
Acyclovir
valacyclovir
