chapter 6 dermatology Flashcards
pruritus
obstructive biliary disease pvera contact dermatitis scabies lichen planus
contact dermatitis
T4HSN new exposure to offending agent nickel earrings well circumscribed vesicles/bullae patch testing to determine AG
atopic dermatitis
first year of life
weeping skin head/diaper
FH/PH of allergies + asthma
scratching the skin - breaks bacterial
AH, topical steroids, topical tacrolimus
seb derm
cradle cap, blepharitis
scaly skin
selenium + ketoconazole topically + steroid topically
fungal infections
clear centrally + expand peripherally
distorted toe nails
if flouresces green under woods lamp = microsporum
if not, tricophyton
dx w/ scraping + KOH prep to visualize fungus or culture.
which fungal infections need PO tx?
tinea capitis + onchomycosis
otherwise use azoles or griseofulvin
candidiassis
oral thrush is normal
immunodeficiency / diabetes if recurrent
tx w/ local nystatin /azole + PO nystatin/ketoconazole
scabies
mite visible burrows: finger web spaces + wrist
pruritus
secondary bacterial infections
immunocompromised = norwegian scabies, crusted == thousands of mites, looks like prosiasis
dx via microscopy
tx via permethrin cream
tinea versicolor
multiple patches of various sizes and color on torso notice in summer dx w/ KOH tx w/ selenium and amidazole malassezia
lice
dx w/ microscopy
tx w/ permethrin
decontamination of bedsheets
warts
HPV
older children = hands
6 * 11 = salicylcic acid, liquid nitrogen, curretage
genital
16 * 18 = cervical cancer
molluscum
pox virus - kids and sex
freeze or curretage
if giant or diffuse - HIV
rosacea
acne – middle age
erythema, alcohol, hot
bulbous red nose + blepharitis
oral tetracycline + topical metronidaozle
hirsutism
PCOS, cushing, drugs (minoxidil, steroids, phenytoin)
virilization: deep voice, frontal baldning, clitoromegaly
- -> check androgen secreting ovarian tumor
male pattern baldness
genetic