Psoriasis Flashcards
psoriasis is
common inflammatory skin disorder seen with erythematous well defined plaques covered by thick silvery scales
Where do we see plaque psoriasis lesions
over scalp, knees, elbows, and back and gluteal cleft and nail beds and these may be mildly itchy
complications of nails with psoriasis
pitting onycholysis and psoriatic arthritis
Eye changes seen with psoriasis
conjunctivitis and uveitis
Treatment of mild to moderate plaque psoriasis
topical steroids high potency (flucinonide or betamethasone dipropionate) should be used to treat thick plaques and twice daily for up to 4 weeks Longer treatment should be lower potency steroids
Guttate psoriasis is
Raindrop psoriasis seen with numerous small red papules and plaques with a fine scale.
seen on trunk and proximal extremiteis and spare the palms and soles.
seen in kids and young adults and increased risk with those who have plaque psoriasis.
can make diagnosis on clinical diagnosis but can also get biopsy.
course is variable and condition often resolves spontaneously in a few months.
seen acutely after 2-3 weeks of a streptococcal infection (pharyngitis or cellulitis)
treatment of psoriasis is by
It depends upon how much of the total body surface area and the severity of the dx.
what kind of psoriasis is this?
Plaque psoriasis
- treat mild to moderate plaque psoriasis <5% of total body surface area
topical steroids -High potency steroids (betamethasone and clobetasol) should e used initiall on thick plaques on extensor surfaces and give bid for 4 weeks.
alternate:
topical vitamin D analogs (calcipotriene)
topical retinoids
how to treat moderate to severe plaque psoriasis?
moderate to severe dx (5-10% of body surface area or disabling lesions of face, palm, or sole) needs
systemic therapy:
methotrexate,
biologic immunomodulators like etancercept
phototherapy.
