Table 4.
Clinical diagnosis and histological groups in 89/101 patients without steroid treatment at the time of diagnosis
| MC | DEMI | PFA | MRN | CN | SN | IFI | CM | Other | |
|---|---|---|---|---|---|---|---|---|---|
| JDM | 18/89 | 33/89 | 17/89 | 4/89 | 2/89 | 1/89 | 0 | 1/89 | 1/89 |
| JDM with scleroderma | 1/89 | 0 | 1/89 | 2/89 | 0 | 0 | 2/89 | 0 | 0 |
| JDM with chronic polyarthritis | 0 | 1/89 | 1/89 | 0 | 0 | 0 | 0 | 0 | 0 |
| PM | 0 | 0 | 1/89 | 0 | 0 | 1/89 | 0 | 0 | 0 |
| Focal myositis | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1/89 |
| Other | 0 | 1/89 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
JDM, juvenile dermatomyositis; PM, Polymyositis; ‘Other’, Inflammatory myopathy clinically not otherwise specified; MC, minimal change; DEMI, diffuse endomysial macrophage infiltrates; PFA, perifascicular atrophy; MRN, macrophage rich necrosis; CN, clustered necrosis; SN, scattered necrosis; IFI, inflammatory fibre invasion; CM, chronic myopathic.