A case of parakinesia brachialis oscitans.

Ultrasound imaging of rhabdomyolysis previously has been reported in the literature, but differing descriptions of its appearance exist. In this report, we describe a relatively rare case of exertional rhabdomyolysis of the anterior arm muscles. This injury may appear sonographically different than more severe cases of rhabdomyolysis. Our patient was a young, active individual participating in a weight-lifting exercise as part of a physiology laboratory experiment. Ultrasound was helpful to assist in the diagnosis and rule out other conditions. He was treated conservatively and eventually made a complete recovery.