Psoriasis Flashcards
what pathogenesis is seen in psoriasis
remains elusive, epidermal hyperplasia and increased epidermal turnover seen
how common is psoriasis and what type of course is seen with the disease
2% adults, chronic course
what causes are involved in psoriasis aetiology
multifactorial; genetic, stress, drugs, infection
what is the most common form of psoriasis
psoriasis vulgaris
describe the sites and pattern of skin changes of psoriasis vulgaris
symmetrical
common sites; extensors(elbows, knees), scalp, sacrum, hands, feet, trunk, nails
describe the plaques seen in psoriasis vulgaris
sharply demarcated, scaly, erythematous plaques
what other signs, other than plaques, can be seen with psoriasis
koebner phenomenon, auspitz sign
what is the koebner phenomenon
when psoriasis develops in area of skin trauma
what is the auspitz sign
when removal of surface scale reveals tiny bleeding points
what other types of psoriasis are there, other than vulgaris
guttate, palmoplantar pustular, erythrodermic or widespread pustular(rare)
describe what clinical features can occur at the nails in psoriasis
onycholysis, nail pitting, dystrophy, subungal hyperkeratosis
what are the aims of treatment for psoriasis
no cure
aim to control chronic disease and manage flares
what are the non-pharmacological aspects of psoriasis management
recognise psychological impacts, education, recognise co-morbidities
give 2 examples of Vitamin D analogues and when they would be used for psoriasis
Calcipotriol = for localised plaques rather than flexures Calcitriol = less irritation, better for flexures
what different treatments can be used for psoriasis
Vit D analogues, coal tar, dithranol, steroid ointment, emollients
