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29 Cards in this Set
- Front
- Back
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Where does atopic dermatitis present in infants?
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Face, scalp, extensor surfaces. Diaper area is spared
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What is the treatment for atopic dermatitis?
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Topical steroids- but not longer than 2-3 weeks
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How does seborrheic dermatitis present in an infant?
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Red diaper rash with yellow scale, erosions, and blisters. A thick crust may be seen on the scalp.
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What kind of people can develop severe seborrheic dermatitis?
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HIV and Parkinson's patients
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How do you treat seborrheic dermatitis?
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Selenium sulfide or zinc pyrithione shampoos for the scalp; Topical antifungals or steroids for other areas in adults
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When does a drug eruption occur?
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7-14 days after exposure
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What is erythema multiforme?
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Targetoid lesions that can be on the palms and soles and associated with systemic symptoms. Can lead to TEN or SJS
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What is erythema nodosum?
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Panniculitis that can be triggered by infection (STREP, histo, cocci, yersinia, TB), drug reactions (sulfonamides, OCPs, abx), and chronic inflammatory disease (IBD, sarcoidosis, Behcet's)
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How does erythema nodosum present?
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Painful, erythematous nodules on the lower legs. Patients may have a false positive VDRL
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What is bullous pemphigoid?
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Antibodies to the BMZ that presents as firm, tense, stable blisters with NO Nikolsky sign or mucosal involvement. Linear immunofluorescence pattern. Treated by steroids
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What is pemphigus vulgaris?
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Antibodies to desmoglein (keratinocyte adhesion), lace-like/fishnet immunofluorescence, flaccid bullae, POSITIVE Nikolsky sign, common mucosal involvement (starts in mouth), treated by high-dose steroids + IVIG
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What are triggers for pemphigus vulgaris?
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ACEIs, penacillamine, phenobarbital, penicillin
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What is erysipelas?
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Starts out as a small red patch on the cheek or extremities that turns into a painful shiny red plaque. patients often have a history of cutaneous ulcers, pharyngitis, or lymphedema
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What does scarlet fever look like?
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Sunburn with goosebumps
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What does the rash of Salmonella typhi look like?
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Small pink papules on the trunk (rose spots) in groups of 10-20 plus fever and GI involvement. Treat with Rocephin and possible cholecystectomy for chronic carrier state
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What is Ludwig's angina?
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Bilateral cellulitis of the submental, submaxillary, and sublingual spaces from an infected tooth
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How does necrotizing fasciitis present?
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Sudden onset of pain and swelling at the site of trauma or recent surgery. Erythema spreads quickly over the course of hours to days and the skin becomes dusky and purplish. There is undermining of the skin and subcutaneous layer, bullae, gas production
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How is necrotizing fasciitis treated?
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Early and aggressive surgical debridement followed by Pen G + Flagyl or Rocephin
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What monthly blood tests do patients on isotretinoin require?
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LFTs, TGs, cholesterol, and B-hCGs
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What is tinea versicolor?
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Small, scaly patches of varying color on the chest or back that are hypopigmented. Treat with ketoconazole or selenium sulfide
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How does gas gangrene present?
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Around a site of recent injury or surgery. Swelling around the injury with skin that turns pale and then dark red
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How can gas gangrene be treated?
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Hyperbaric oxygen, surgical debridement, abx
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What does lichen planus look like?
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Violaceous, flat-topped, polygonal papules with prominent Koebner's phenomena (lesions at the site of trauma) with a shiny surface with fine white lines (Wickham's striae). Tx with steroids
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How do you treat rosacea?
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Flagyl
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What needs to be ruled out when pityriasis rosea is suspected?
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Fungal infection (KOH stain)
Syphilis (RPR) |
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How is melanoma treated?
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Lesions confined to the skin are treated by excision with margins
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What is tinea capitis?
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Infection of the scalp; mainly affects children with scaly patches of hair loss and possible inflamed, boggy granuloma of the scalp. REQURES SYSTEMIC Antifungals
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What infection can cause erythema multiforme?
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Herpes
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What is heratoacanthoma?
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Rapidly growing (grows to full size in 1-2 months) flesh-colored lesion with a central crater that contains keratinous material, usually on the face. Spontaneously involutes but observe in those with a history of it
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