Characteristics of patients with MRI-confirmed TMJ arthritis.
| Patient | Age, yrs, sex | Race | Diagnosis | Serology | Peripheral Arthritis, (Y/N) | Indication for MRI | Original MRI Results |
|---|---|---|---|---|---|---|---|
| 1 | 17 F | AA | Sjögren | ANA 1:640, speckled, SSA +, RF+ | Y | Asymmetric opening | Mild Bi TMJ arthritis |
| 2 | 13 F | AA | Sjögren | ANA 1:80, speckled, SSA+, RF−, HLA-B27− | Y | TMJ pain | Flattening of mandibular condyle, Bi synovial enhancement |
| 3 | 14 F | AA | Sjögren | ANA 1:640, speckled, SSA+, RF− | Y | Asymmetric opening | Bi TMJ synovial enhancement |
| 4 | 11 F | W | Sjögren | ANA 1:1280, speckled, SSA+, RF− | Y | Asymmetric opening | Bi TMJ synovial enhancement |
| 5 | 14 M | AA | Sarcoidosis | ANA−, ACE 104*, RF−HLA-B27− | Y | Asymmetric opening | Mild cartilage thinning and unilateral synovial enhancement |
| 6 | 9 M | W | Sarcoidosis | ANA−, ACE 80, RF−, HLA-B27− | Y | Asymmetric opening | Bi TMJ synovial enhancement |
| 7 | 14 M | W | Sarcoidosis (by LN biopsy) | ANA−, ACE 49, lysozyme 7.5, HLA-B27− | N | TMJ pain | Bi TMJ fluid, increased enhancement R TMJ |
↵* Reference ranges: ACE 13–100; lysozyme 4.0–10.3. AA: African American; ACE: angiotensin-converting enzyme; ANA: antinuclear antibody; Bi: bilateral; LN: lymph node; R: right; RF: rheumatoid factor; SSA: Sjögren syndrome A antibody; TMJ: temporomandibular joint; W: white.