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6 Cards in this Set
- Front
- Back
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Red scaling lesions DDx (dermatitis)
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atopic - flexural folds
contact - hx nummular - coin-like, isolated seborrheic - scalp, nasolabial folds, chest |
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red scaling lesions DDx (non-dermatitis)
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psoriasis - elb, knees, scalp, nail pits
discoid lupus - don't see hair follicles drug rxn - gold lichen planus - flat surface, lacy lines on surface mycosis fungoides - girdle area pityriasis rosea - Christmas tree distribution 2° syphilis - palms & soles, copper coloured tinea - well demarcated, raised border |
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Discrete red papules ddx - inflammatory
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bites, stings - hx of outdoors, central punctum
furuncle - very painful, central plug hives - whitish border, pruritic inflammed epidermal cyst - mobile under skin inflammed seborrheic keratosis - stuck-on appearance lichen planus - purple, polygonal papules with flat surface scabies - burrow, interdigital, groin, family members urticaria |
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Discrete red papules ddx - proliferative
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dermataofibroma - "dimple sign"
hemangioma - blanching psoriasis |
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Viral vesicles DDx
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HSV - mouth, genitals
Zoster - dermatomal, painful varicella - generalized, pruritic molluscum - umbilicated coxsackie - painful, foot & mouth, summer |
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Non-viral vesicles
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acute contact dermatitis - eg poison ivy, exposure Hx
Cat scratch disease dyshydrotic eczema - sides of fingers, palms, soles dermatitis herpetiformis - itchy, gluten hx impetigo scabies |
