Fig. 4

Treatment and outcomes. ^*The patient was concomitant with Churg-Strauss syndrome and died from multiple organ failure 13 months after the muscle biopsy. ^# This patient discontinued the medication himself after only one month of treatment and reached neither improvement nor progression. ^& Relapse was reported in this patient after drug withdrawal for 1.5 months, while complete recovery was achieved again after re-treatment with prednisone