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Psoriasis - definition and diagnosis (Symptoms (itch, burning, pain,…
Psoriasis - definition and diagnosis
Psoriasis is a systemic, immune-mediated, inflammatory skin disease which typically has a chronic relapsing-remitting course, and may have nail and joint (psoriatic arthritis) involvement.
Chronic plaque psoriasis (including scalp psoriasis, flexural psoriasis, and facial psoriasis) is the most common form, affecting 80–90% of people with psoriasis. The second most common form is localized pustular psoriasis of the palms and soles.
other forms
Guttate psoriasis
Nail psoriasis
Erythrodermic and generalized pustular psoriasis (rare medical emergencies, may be life-threatening
Symptoms
itch
burning
pain
bleeding
scaling
The person's perception of severity of psoriasis — consider using the 7-point Patient's Global Assessment (PGA) score with points indicating increasing severity: ranging from clear (scores 0); nearly clear; mild; moderate; severe; or very severe (6).
RED FLAGS
Symptoms of systemic illness: fever, malaise, weight loss
generalized pustular psoriasis or erythrodermic psoriasis are suspected
Articular symptoms
of unexplained joint stiffness, pain, or swelling; or nail changes, that may suggest a diagnosis of psoriatic arthritis
Consider using the Psoriasis Epidemiology Screening Tool (PEST) — if a person scores three or more out of five, consider arranging a referral to a rheumatologist.
Note: the PEST does not detect axial arthritis or inflammatory back pain
assess cardiovascular disease