Psoriasis

Diagnosis is primarily clinical, based on physical examination of the skin, scalp, and nails. In some cases, a skin biopsy may be performed to confirm the diagnosis and rule out other skin disorders. No specific blood test confirms psoriasis, but labs may be ordered to assess for systemic inflammation or underlying diseases.

• Topical agents: Corticosteroids, vitamin D analogues, calcineurin inhibitors
• Phototherapy: Narrowband UVB, PUVA
• Systemic medications: Methotrexate, cyclosporine, acitretin, dimethyl fumarate, apremilast
• Biologics: TNF-alpha inhibitors, IL-17/IL-23 inhibitors