Demographics - Answer-2% UK
Male=female (chronic plaque
Onset any age but commonly <40. Average age 33. Females earlier than males (hormones)
Psoriasis pathogenesis - Answer-Hyperproliferative disorder where the life cycle of keratinocytes shortens causing a 28x normal production of epiderm...
Psoriasis Exam Questions and Answers
Demographics - Answer-2% UK
Male=female (chronic plaque
Onset any age but commonly <40. Average age 33. Females earlier than males
(hormones)
Psoriasis pathogenesis - Answer-Hyperproliferative disorder where the life cycle of
keratinocytes shortens causing a 28x normal production of epidermal cells. T-cell
medicated.
Psoriasis characteristics - Answer-- red, silver scaling, symmetrical plaques, well
circumscribed
- elbows, knees, scalp, sacrum
- nails are affected in 50%
- arthritis in 15%
Types of psoriasis - Answer-- Chronic plaque is most common 90%
- guttate
- erythrodermic
- flexural
- pustular
- sebopsoriasis
Psoriasis pictures - Answer-Well defined erythematous plaque with fine scaling
Hand psoriasis - Answer-Begins in pressure bearing areas and dominant handedness
Less well demarcated psoriasis
Scalp psoriasis - Answer-well defined edge, doesn't extend onto the forehead like
seborrhoeic dermatitis
DD Seborrhoeic dermatitis - Answer-
DD Pityriasis amiantacea - Answer-Scales which ensheath and bind down tuft of hairs.
Removal of scales can cause erythematous hairless skin. Isolated idiopathic
phenomenon.
Women average age 25.
Resolves over months to few years.
Erythroderma psoriasis - Answer-
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