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Different kinds of evolution of the 21 patients who received steroid treatment.
| Evolution | Number of Patients (%) |
|---|---|
| Regression of radiological findings: | 17 (80) |
| Complete (no maintenance therapy) | 2 (9.5) |
| Significant relapse | 3 (14.2) |
| Fibrosing evolution | 2 (9.5) |
