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29 Cards in this Set
- Front
- Back
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how do yeasts and hyphae differ?
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yeasts: unicellular, reproduce w/ budding/ fission
hyphae: multi-celled, sexual or asexual reproduction |
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what do dermatophytes affect?
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stratum corneum & its appendages
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multiple lesions on exposed areas
peripheral enlargement central clearing Asx weeks-long |
microsporum, trichophyton, epidermophyton
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white scaly lesion on scalp
erythematous well-demarcated hair loss |
tinea capitus
"bald patch child" |
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what causes tinea capitus?
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************
trichophyton tonsurans in US microsporum canis worldwide ******** |
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what is the Tx of tinea capitus?
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griseofulvin
6-12wks |
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tender, boggy, draining, indurated mass on scalp
child recent ringworm infection |
hypersensitivity to fungal infection
give antifungals only |
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chest rash
sharply demarcated present for weeks pale macules, fine scaling worse in summer |
tinea versicolor
"funny tan" |
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what causes tinea versicolor?
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malssezia furfur
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what's the Tx for tinea versicolor?
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scale removal, selenium sulfide, miconazole cream; fluconazole
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what should be avoided with monilial diaper dermatitis?
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fluorinated steroids
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sharply defined white patch in mouth
erythematous base |
oral candidiasis
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erythematous, moist exudate in skin fold leads to subcorneal pustules, erosions, satellite papules
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candida intertrigo
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what are yeast infections of the following regions called: vaginal, perianal, nail bed
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vulvovaginitis
candidal balanitis candida paronychia |
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bumps around eye
flesh-colored domed papules slight umbilication |
molluscum contagiosum
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how does molluscum contagiosum infect?
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autoinocuation = mode of spread
pox viral infection predisposing: sports, eczema |
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painful bumps, pain precedes bumps
pustules, then scabs |
herpes zoster/ shingles
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how do you treat herpes zoster (shingles)?
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antiviral 7-10 days
vaccine if >60 yo |
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what is herpes zoster reactivation at the nasociliary branch of the trigeminal?
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herpes zoster ophthalmicus
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what is Hutchinson sign?
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zoster vesicles on tip of nose precede herpes zoster ophthalmicus
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myxovirus
upper resp tract fever Koplik spots - day 3 rash - day 4-5 mostly upper body |
rubeola (measles)
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which patient population is of particular concern with rubeola?
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pregnant pts
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small, fine round pink macules
face/ head then toward trunk 2-3 days then disappears low fever, cough, lymphadenopathy toga virus, URI, kids |
german measles/ rubella
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red macules on soft palate
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forscheimer's spots of rubella
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cataracts
cardiac anomalies (PDA) can't hear (deaf) |
rubella Cx, especially in pregnant patients (to fetus)
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what are blueberry muffin spots?
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hematopoeitic cells of RUBELLA
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child
high fever rash on trunk pink macules & papules, ring of pallor |
roseola
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child with cheeks that look "slapped"
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erythema infectiosum/ fifth's ds/ parovirus b19
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assoc w/ sickle cell aplastic crisis
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fifth's ds
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