acneiform lesions Flashcards
Acne Vulgarisms etiology/epidemiology
Genetic predisposition (auto dom) Age: newborns, adolescents (androgens at puberty)
Typical causes of acne odors lesions
Infection (tuberous sclerosis, 2nd syphilis)
Growth anomalies
Drug rxn
Acne presentation
Non-inflammatory: comedones
Inflammatory: papules, pustules, nodules from P acnes
On areas with a lot of hair follicles
May cause depression
Acne aggravating factors
Cosmetics Meds: steroids, lithium, upsides Endrocrine disorders: polycystic ovaries, adrenal hyperplasia Mechanical occlusion Not diet
Acne Vulgaris treatment (topical)
Wash face
Benzoyl Peroxide (m.c. Irritant dermatitis)
Topical retinoids (skin peeling and sun sensitivity) - adapalene, tazorac
Topical antibiotics - fight P acnes and reduce inflammation
Acne Vulgaris treatments (systemic)
Antibiotics - reduce inflammation** and fight P acnes (more lipophyllic antibiotics better)
Acutane
Oral contraceptives
Spironolactone (serious SEs)
Acutane
Aka isotretinion Highly effective, dermatologist should prescribe **Teratogen, always given with BC Monthly labs Heightens depression/suicidal thoughts Risk of abnormal healing
Papulopustular Drug Rxn causes
Antibiotics
Chemo
Naproxen
Papulopustular drug Rxn presentation
Fever with leukocytosis
No comedones
Eruptive vellus hair cysts presentation
Flesh colored papules on vellus hair follicles
Eruptive vellus hair cysts treatment
Ex incision and drainage (risk of scar)
Topical retinoids and lactic acid preparations
Steroid acne
Monomorphous papules
Trunk and extremities, less on face
From admin of steroids
Treat like acne vulgaris
Chloracne
Comedones and cysts
Possible pigment changes
From exposure to halogenated aromatic hydrocarbons
Secondary Syphilis
Papulopustules and nodules (crusted) on face trunk and extremities due to spirochete (Treponema pallidum) infection
Erythematotelangiectatic type rosacea (ETR)
Central face flushing Spares periocular (almost looks like SLE butterfly rash)
