Section 2- Eczema/Dermatitis Flashcards
Type of hypersensitivity reaction of allergic contact dermatitis
Type IV
This type of contact dermatitis occurs after a single exposure to the offending agent
Dependent on the concentration
Irritant contact dermatitis
Most common form of occupational skin disease
Irritant contact dermatitis
Most common form of chronic irritant contact dermatitis
Cumulative ICD
Patch tests should be delayed until dermatitis has subsided for at least _____
2 weeks
Topical therapy for allergic contact dermatitis
Topical glucocorticoids (class 1-3) Wet dressings soaked in Burow solution changed Q2-3
Systemic glucocorticoid for ACD
Prednisone 70mg tapering to 5-10mg OD x 1-2 weeks
Hypersensitivity reaction in atopic dermatitis
Type I (IgE mediated)
What interleukins predominate in Acute AD?
IL 4
IL 13
Sine qua non of atopic dermatitis
Pruritus
Adult type AD type of distribution
Flexural
AD in african americans and in dark brown skin is more _____
Follicular
Cyclosporine side effects
Hypertension
Reduced renal function
Treatment for severe adult AD in healthy persons when all other treatments fail
Cyclosporine 5mg/kg/day
Limited to 3-6 months due to side effects
Results from repetitive rubbing and scratching
Occurring in circumscribed plaques, skin is palpably thickened, excoriations
Lichen simplex chronicus
Often associated with AD
Multiple, firm, excoriated nodules arising in sites of chronically picked or excoriated skin
Usually on extremities
Prurigo nodularis
Treatment of prurigo nodularis
Intralesional triamcinolone
Occlusive dressings with glucocorticoids
Thalidomide- severe cases
Special vesicular type of hand and foot dermatitis
Deep seated pruritic, clear tapioca like vesicles
Recurrent attacks are the rule
Dyshidrotic eczema
Treatment for dyshidrotic eczema
Topical high potency glucocorticoids
Intralesional triamcinolone 3mg/ml
Severe: prednisone 70mg tapering by 5-10mg over 7-14 days
Chronic pruritic inflammatory dermatitis in form of coin shaped plaques composed of grouped small papules and vesicles on an erythematous base
Nummular eczema
Autosensitization dermatitis (id reaction) results from
Release of cytokines from primary dermatitis
Pathogen that may play a role in developing seborrheic dermatitis
Malassezia furfur
Orange red or gray white skin often with greasy or white dry scaling macules
Gradual onset
Cradle cap
Seborrheic dermatitis
Management of seborrheic dermatitis
Shampoo: Selenium sulfide Zinc pyrithione Tar Ketoconazole
Low potency glucocorticoids, picremolimus 1% cream
Management for seborrheic dermatitis in intertriginous areas
Ketoconazole 2%
Common dermatitis in older persons in temperate climates during winter
Occurs in legs arms and hands
Dry cracked fissured skin with slight scaling
Asteatotic dermatitis
Management of asteatotic dermatitis
Avoid overbathing
Increase ambient humidity to >50%
Emollients
Glucocorticoids if skin is inflamed
