The underlying pathogenesis of steroid-induced myopathy associated with chronic use is a non-necrotic atrophic myopathy resulting in proximal muscle weakness without muscle pain or tenderness.

• 慢性用药导致的类固醇诱导性肌病是一种非坏死性萎缩性肌病，导致近端肌无力不伴有肌肉疼痛和压痛。