Table 1.

Histopathological assessment of synovitis score.

Enlargement of Synovial Lining Cell Layer

0 point  Thickness 1–2 cells

1 point  Thickness 2–3 cells

2 point  Thickness 3–5 cells

3 point  Thickness >5 cells

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