Isolated corticosteroid myopathy of the gluteal muscles.

Corticosteroid myopathy is a severe side effect of corticosteroid application. Although the risk usually increases with drug dosage, even a single dose can lead to substantial muscular damage. Usually the tissue recovers over time after discontinuation of the responsible drug. We report local corticosteroid myopathy in a patient who had been given corticosteroid injections because of chronic hip pain. In this case, the patient's myopathy in the left hip region had not improved after 6 months.