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.
Erythrodermic and generalized pustular psoriasis (rare medical emergencies, may be life-threatening
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).
Symptoms of systemic illness: fever, malaise, weight loss
generalized pustular psoriasis or erythrodermic psoriasis are suspected
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