Dry, Papulosquamous, Inflammatory Etc. Flashcards
Characteristics of lichen simplex chronicus
- feels good to itch
- localized plaque resulting from chronic eczematous inflammation/repetitive rubbing and itching
- sharply demarcated
What is this condition
Lichen Simplex Chronicus
(DDx: tinea, allergic rxn, psoriasis)
Lichen Simplex Chronicus Tx
- steroids
- antipruritics
- Abx for secondary infections
- Treat stress
Characteristics of keratosis pilaris
- mild follicular plugging
- asymptomatic or pruritic
- sandpaper texture
- small rough folliculocentric keratotic papules, can be erythematous
What is this condition
keratosis pilaris
(DDx often confused with acne)
Keratosis pilaris Tx
- emollients
- tretinoin
- lac-hydrin
- avoid abrasion
Characteristics of xerosis
- extremely dry skin
- flares, worse in cold, pruritic, can exacerbate eczema
- erythema, cracks, inflammed, Dried riverbed
What is this condition
Xerosis
Xerosis Tx
- mild cleansers
- emollients
Characteristics of icthyosis vulgaris
- fish scales
- autosomal dominant
- excess accumulation of cutaneous scales
- often seen with atopic dermatitis
- extensor extremities
What is this condition
Icthyosis vulgaris (DDx: dry skin, xerosis, eczema)
Icthyosis vulgaris Tx
- keratolytics
- topical/systemic retinouds
- topical corticosteroids
- moisture
- ammonium lactate
Pityriasis rosea characteristics
- self limited asymptomatic papulosquamous eruption usually on trunk to extremities
- not contagious
- mild prodrome
- herald patch = initial primary plaque
- christmas tree distrubution with collarette scale
What is this condition and what is the arrow pointing to
pityriasis rosea and a herald patch (DDx: tinea, syphilis, tinea versicolor, guttate psoriasis)
Pityriasis rosea Tx
- emollients
- low potency topical steroids
- oral antihistamines and sarna
What is this condition
Lichen planus (DDx: psoriasis, eczema, lichen simplex chronicus)
characteristics of lichen planus
- The 5 Ps (pruritic, planar, polygonal, purple, papules)
- flexural surfaces
- intermittent pruritic inflammatory cutaneous and mucous membrane rxn
- Wickham striae appears as white reticular pattern in mouth
Lichen planus Tx
- self limiting
- refer to derm
- topical corticosteroids
- treat pruritis
What is this condition
granuloma annulare (DDx: tinea corporis, nummular eczema)
Characteristics of granuloma annulare
- slow progressive annular plaque
- may be asymptomatic and present for years
- worse in summer
- firm, skin colored, erythematous, grouped arcuate or annular with central clearing/depression, smooth
- dorsal/extensor surfaces
Granuloma annulare treatment
- observation
- corticosteroids
- intralesional steroids
- cryotherapy
What is this condition
erythema nodosum (DDx: cellulitis, insect bites, ecchymosis, panniculitis, purpura, vasculitis)
Characteristics of erythema nodosum
- inflammatory rxn in subQ fat caused by drugs, infection, systemic disorders
- poorly defined red tender nodules on extensor surfaces
treatment for erythema nodosum
- treat underlying conditions
- anti-inflammatories
- bed rest
- cool compress
- topical corticosteroids
What is this condition
Urticaria (DDx: drug eruption, viral exanthem, bites)
characteristics of urticaria
- sudden onset of variably pruritic rxn causing transient edematous red wheals
- mast cells releasing histamines
- sudden onset that quickly resolves
- newest lesions = most red
- dermatographism
Urticaria treatment
- antihistamines
- corticosteroids
- cool compress
- treat underlying condition
What is this condition
angioedema
Characteristics of angioedema
- acute allergic, non-allergic drug rxn, idiopathic/chronic, hereditary
- abrupt evanescent swelling
- 3 prominent sites: subQ, GI mucosa, upper airway
- non-pitting swelling, generally not painful or itchy
Treatment of angioedema
- epinephrine/epi pen
- medical alert bracelet
- antihistamines
- oral steroids
- hospital
