Table 1. Clinical characteristics of patient 1.
ANA: Antinuclear antibodies; ENA: Extractable nuclear antigen; CCP: Cyclic citrullinated peptide; ESR: Erythrocyte sedimentation rate; CRP: C-reactive protein; CPK: Creatine phosphokinase.
| Labs | April 24, 2021 | July 26, 2021 | September 20, 2021 |
| ANA | 1:160 homogeneous | Negative | |
| ENA panel | Negative | ||
| Rheumatoid factor (IU/ml) | Negative | 11 | |
| Anti-CCP (U/ml) | 6 | <1 | |
| ESR (mm/h) | 89 | 46 | 17 |
| CRP (mg/dL) | 12.5 | 10.8 | 2.36 |
| CPK | 47 | 35 | |
| Extended myositis panel | Negative | ||
| Hemoglobin (g/dl) | 11.8 | ||
| Platelets | 409,000 | ||
| Albumin (g/dl) | 3.8 | ||
| Electromyography | Normal |