Table 3 General synovitis score (GSS) in distal interphalangeal (DIP) and proximal interphalangeal (PIP) joints. The GSS consists of three features, lining layer hyperplasia, activation of resident cells, and inflammatory infiltrate that are graded from 0 to 3. The percentage of each graded feature in DIP and PIP joints is provided
| Â | DIP joints | PIP joints | ||||||
|---|---|---|---|---|---|---|---|---|
GSS points | 0 | 1 | 2 | 3 | 0 | 1 | 2 | 3 |
Synovial lining | 18.9% | 78.4% | 2.7% | 0 | 30.8% | 69.2% | 0 | 0 |
Synovial stroma | 56.8% | 37.8% | 5.4% | 0 | 61.5% | 33.4% | 5.1% | 0 |
Inflammatory infiltrate | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |