Table 2.

Scheme for the histopathological assessment of the three features of chronic synovitis.

Points	Inflammatory infiltrate
0 point	No inflammatory infiltrate
1 point	Few mostly perivascular situated lymphocytes or plasma cells
2 point	Numerous lymphocytes or plasma cells, sometimes forming follicle-like aggregates
3 point	Dense band-like inflammatory infiltrate or numerous large follicle-like aggregates