Psoriasis is a chronic inflammatory disease that affects the skin and joints.
It occurs less frequently but presents with more severe disease in African Americans as compared to Caucasians
It can present with itchy reddish-purple, well-demarcated plaques with a grey-white scale. Darker-skinned patients tend to present with more with thickened plaques, nodules, and dark patches. There is typically less redness in darker skin types.
Psoriasis is thought to be caused by the interplay between autoimmunity, hyperproliferation of the skin, and environmental triggers.
Management includes avoiding triggers, gentle skin care, frequent moisturization, topical anti-inflammatory agents (e.g. corticosteroids, calcineurin), topical vitamin D analogs, oral anti-inflammatory medications (e.g. cyclosporine, methotrexate), topical and or oral retinoids, phototherapy, and biologics
- Kerr GS, et al., Psoriasis and psoriatic arthritis in African-American patients--the need to measure disease burden. Clin Rheumatol. 2015 Oct;34(10):1753-9
- McMichael AJ, et al., Psoriasis in African-Americans: a caregivers' survey. J Drugs Dermatol. 2012 Apr;11(4):478-82.