| Inflammatory articular disease (joint,
spine or entheseal) with three or more of the following: |
| 1 |
Evidence of psoriasis - one of |
a |
current psoriasis (scores 2 points) |
|
| |
|
b |
personal history of psoriasis |
|
| |
|
c |
family history of psoriasis |
First or second degree relative |
| 2 |
Psoriatic nail dystrophy |
|
Typical psoriatic nail dystrophy
including onycholysis, pitting and hyperkeratosis |
| 3 |
Negative test for rheumatoid factor |
|
|
|
| 4 |
Dactylitis - one of |
a |
current dactylitis |
Swelling of entire digit |
| |
|
b |
history of dactylitis |
|
| 5 |
Radiological evidence of juxta-articular new
bone formation |
|
Ill-defined ossification near joint
margins (but excluding osteophyte formation) on x-rays of hand or
foot |
Psoriatic
arthropathy