Table 3.
Frequency table of discordant diagnoses.
| Diagnosis | Frequency |
|---|---|
| Inflammatory arthritis | 82 |
| B-cell lymphoma | 22 |
| Pigmented villonodular synovitis (PVNS) | 19 |
| Unenumerated malignancies (most commonly B-cell lymphoma, includes metastatic carcinoma) | 14 |
| Septic arthritis | 5 |
| Osteomyelitis | 3 |
| Metastatic carcinoma | 1 |
| Granulomatous inflammation | 1 |
| Total = 147 |