Asymmetry of small joint involvement in rheumatoid arthritis: prevalence and tendency towards symmetry over time

Conclusions. - Prevalence of asymmetry in joint damage in RA was 13-16%. Symmetry was more evident in PIP joints than in MCP and wrist joints. Seropositive patients are more than twice as likely to symmetrize than seronegative patients. Data regarding the tendency for symmetrization may have value in the clinical management of RA patients with asymmetrical joint damage.