Presentation
Pain and swelling of third digit. 10-year history of psoriasis.
Patient Data
Age: 50 years
Gender: Male
From the case:
Psoriatic arthritis
Frontal

Marginal erosions at the third proximal interphalangeal joint.
Case Discussion
The x-ray findings in combination with a 10-year history of psoriasis are in keeping with psoriatic arthritis.