Table 1.

Traditional characteristics of paraneoplastic arthritis [adapted from Stummvoll et al. (5), Larson et al. (8), Caldwell and McCallum (19), and Pfitzenmeyer et al. (20)].

1. Close temporal relationship (12 months) between the onset of arthritis and malignancy

2. Older age

3. Joint involvement in an asymmetric distribution

4. Predominance of lower extremity involvement

5. Explosive onset

6. Absence of family history of rheumatic disease

7. Absence of rheumatoid nodules

8. Absence of characteristic radiographic lesions of RA

9. Absence of RF

10. Non-specific histopathologic appearance of the synovial lining

RA, rheumatoid arthritis; RF, rheumatoid factor.