- "Psoriatic arthritis (PsA) is a long-term inflammatory arthritis that occurs in people affected by the autoimmune disease psoriasis."
A form of arthritis associated with psoriasis, a skin condition.
- "The classic feature of psoriatic arthritis is swelling of entire fingers and toes with a sausage-like appearance ('sausage digit')."
- "This often happens in association with changes to the nails such as small depressions in the nail (pitting), thickening of the nails, and detachment of the nail from the nailbed."
- "Skin changes consistent with psoriasis (e.g., red, scaly, and itchy plaques) frequently occur before the onset of psoriatic arthritis..."
- "...but psoriatic arthritis can precede the rash in 15% of affected individuals."
- "It is classified as a type of seronegative spondyloarthropathy."
- "Genetics are thought to be strongly involved in the development of psoriatic arthritis."
- "Obesity and certain forms of psoriasis are thought to increase the risk."
- "Psoriatic arthritis affects up to 30% of people with psoriasis..."
- "Approximately 40–50% of individuals with psoriatic arthritis have the HLA-B27 genotype."
- "The condition is less common in people of Asian or African descent..."
- "...and affects men and women equally."
- "Psoriatic arthritis affects...children and adults."
- "Swelling of entire fingers and toes with a sausage-like appearance" and "changes to the nails...small depressions, thickening, and detachment."
- "Red, scaly, and itchy plaques" before the onset of psoriatic arthritis.
- "Psoriatic arthritis (PsA) is a long-term inflammatory arthritis that occurs in people affected by the autoimmune disease psoriasis."
- "...obesity...thought to increase the risk."
- "Approximately 40–50% of individuals with psoriatic arthritis have the HLA-B27 genotype."
- "Psoriatic arthritis affects up to 30% of people with psoriasis..."
- "The condition is less common in people of Asian or African descent..."