People with darker skin are more likely to find psoriasis lesions on the scalp, elbows, knees, torso, buttocks, and even nails. Affected areas can also vary in size. If you have scalp psoriasis ...

Skin biopsy showing ulcerated ... original magnification x40). Regressive lesions with atrophic and hypochromic irregular scars in the ear and scalp after 2 months of antiviral treatment.