USMLE Step 3 - Dermatology &
Ophthalmology Exam
All Questions and Correct Answers |
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, Seborrheic dermatitis erythematous, pruritic plaques with greasy scale on scalp, central face, ears
cause by pityrosporum oval
Tx:
low potency topical steroids
topical antifungal
Zinc pyrithione shampoo
Keloids B9 fibrous growths, scar tissue secondary over production of extracellular matrix
and dermal fibroblast
Tx:
intralesional glucocorticoids
can recur
Candidial diaper infection presence of tomato-red plaques, satellite papule found on folds
Tx:
antimycotic agents (clotrimazole, nystatin)
Diaper Dermatitis differs from candida in that it doesn't involved the folds
Tx:
zinc oxide crease
Lichen Planus 4Ps: pruritic, planar, polygonal, purple
associated with advance liver disease due to HCV
Dx:
skin biopsy
Porphyria cutanea tarda characterized by painless blisters, hyperthyroidism, hyper pigmentation,
associated with hep C
triggered by injection of certain substances (ethanol, estrogens)
Tinea capitis superficial dermatophytosis, MC in children, causes scaly patches with slight
erythema and hair loss
Dx:
KOH prep
Tx:
Oral griseofulvin, terbinafine
Pediculosis (lice & crabs) tends to include the head, easily transmitted by sharing hats and hairbrushes
Dx:
organism can readily be seen attached to hair-bearing areas
tx:
Topical permethrin
Scabies involves primarily the web spaces of the hands an feed, extreme itching
Dx:
scraping out of the organism after mineral oil is applied to a burrow
tx:
Topical 5% permethrin
Rubella (German measles) High fever and red maculopapular rash together, starts head and spread down
body
occipital adenopathy
Tx: supportive care
Ophthalmology Exam
All Questions and Correct Answers |
Graded A+ | Verified Answers | Latest
Version (Just Released)
, Seborrheic dermatitis erythematous, pruritic plaques with greasy scale on scalp, central face, ears
cause by pityrosporum oval
Tx:
low potency topical steroids
topical antifungal
Zinc pyrithione shampoo
Keloids B9 fibrous growths, scar tissue secondary over production of extracellular matrix
and dermal fibroblast
Tx:
intralesional glucocorticoids
can recur
Candidial diaper infection presence of tomato-red plaques, satellite papule found on folds
Tx:
antimycotic agents (clotrimazole, nystatin)
Diaper Dermatitis differs from candida in that it doesn't involved the folds
Tx:
zinc oxide crease
Lichen Planus 4Ps: pruritic, planar, polygonal, purple
associated with advance liver disease due to HCV
Dx:
skin biopsy
Porphyria cutanea tarda characterized by painless blisters, hyperthyroidism, hyper pigmentation,
associated with hep C
triggered by injection of certain substances (ethanol, estrogens)
Tinea capitis superficial dermatophytosis, MC in children, causes scaly patches with slight
erythema and hair loss
Dx:
KOH prep
Tx:
Oral griseofulvin, terbinafine
Pediculosis (lice & crabs) tends to include the head, easily transmitted by sharing hats and hairbrushes
Dx:
organism can readily be seen attached to hair-bearing areas
tx:
Topical permethrin
Scabies involves primarily the web spaces of the hands an feed, extreme itching
Dx:
scraping out of the organism after mineral oil is applied to a burrow
tx:
Topical 5% permethrin
Rubella (German measles) High fever and red maculopapular rash together, starts head and spread down
body
occipital adenopathy
Tx: supportive care
