AAD blisters Flashcards
Diffusely scattered vesicles on erythematous base; can be extensive or severe
chicken pox
2 ways to confirm chickenpox dx
tzanck prep
DFA or PCR
grouped vesicles on erythematous base esp on trunk; preceded by pain or burning
herpes zoster (shingles)
Painful, grouped vesicles on erythematous base; tends to be in same place
HSV
signs of HSV on erosions in clinic (2)
BRIGHT RED RIM on erosion
pain & recurrence
test to differentiate HSV from shingles that works on both vesicles and erosions
DFA (direct fluorescent antibody) test
test to reveal PREVIOUS exposure to HSV
herpes specific IgG antibody (Herpselect)
3 manifestations of neonatal HSV
localized skin, eye and mouth (SEM
CNS +/- SEM
Disseminated
why is early dx and tx of neonatal HSV important?
tx can prevent it from going from localized SEM to CNS & disseminated
Multiple, red painful blisters with red borders on fingers; may be pustular
herpetic whitlow
bacterial infection caused by gram +; usually S. aureus toxin; mostly in kids
bullous impetigo
a generalized form of exotoxin-mediated dz; Toxin in blood causes widespread superficial blisters where skin peels away in sheets
staph scalded skin syndrome
results of wound cultures from erosions with staph scalded skin syndrome
negative
two populations at risk for staph scalded skin syndrome
kids under 2 yrs
adult w/ renal dz
when do you refer to derm with staph scalded skin syndrome
extensive blistering!