Is all psoriatic arthritis the same?
Is all psoriatic arthritis the same?
There are considered to be five different forms of psoriatic arthritis:
- Symmetric: Affects multiple symmetric pairs of joints (occurs in the same joints on both sides of the body).
- Oligoarticular: Affects few joints in an asymmetric pattern and is usually milder.
- Distal interphalangeal (DIP): Affects primarily the distal joints of the fingers and toes (the joints closest to the nail).
- Spondylitis: Predominantly affects the spinal column from the neck to the lower back.
- Arthritis mutilans: Affects the small joints of the hands and feet, although it can appear in other joints. This rare form of arthritis is severe and destructive.