Flashcards in Psoriasis Deck (11)
What is a T cell mediated AI disease?
What causes this?
overactive immune system, increased C reactive protein
What are some triggers?
skin injury, infections, HIV, hypocalcemia, pregnancy, stress, drugs, ETOH, smoking, obesity
sharply demarcated erythematous plaques with thick white scale (elbows, knees, trunk, parasacrum, scalp); usually symmetrical but doesn’t have to be; may be itchy during flare
classic psoriasis vulgaris
What is erythrodermic psoriasis?
MEDICAL EMERGENCY if pt feels ill - 90% body
shiny erythematous plaques that have no scale because of constant friction in involved areas (axillae, inframammory folds, and groin); can be extremely itchy
dew drop shaped papules and plaques (trunk, extremities); most common in children, esp post-strep infection; usually self-limited but can be a sign that child will develop psoriasis in future (guttate means “droplike”)
filtration of inflammatory neutrophils cause sterile pustules (generalized or localized); triggers include pregnancy, tapering of steroids, certain biologics, hypocalcemia, infections, irritants; debilitating
sterile pustules with brown macules and sometimes peeling; most pts have psoriasis only in these locations; hardest to treat; usually caused by smoking, infections and stress
pustulosis of palms and soles
large, well-defined and localized plaques with thick white scale, extremely itchy, can be mistaken for seb derm but will extend onto forehead