Psoriatic arthritis (PsA) is a chronic (long-lasting) condition that combines the skin-related symptoms of psoriasis with the joint-related symptoms of arthritis. PsA is an autoimmune disease, meaning ...

Syndesmophytes developed in nearly 1 in 5 patients with psoriatic arthritis (PsA) during long-term observation, with the incidence declining in recent decades. Higher erythrocyte sedimentation rate ...

Philip J. Mease, MD: It was 30% in a study in which I was lead author. The study involved 40 different dermatology clinics with dermatologists specializing in psoriasis in North America and Europe.

People with psoriatic arthritis (PsA) often take medicines to help manage their condition and improve their symptoms. Some of these medicines work directly on the body's immune system and help to ...

Psoriasis-a chronic, autoimmune condition that causes inflammation of the skin, often in the form of thick discolored areas covered with scales-is unpleasant enough on its own. But people with ...

—Rheumatoid arthritis, axial spondyloarthritis, and psoriatic arthritis have been linked to poorer outcomes during pregnancy, but not much is known about how these conditions raise the risk of ...