Supinator Cyst in a Young Female Softball Player Successfully Treated With Aspiration.

Ganglion cysts around the elbow joint are rare, with fewer than 25 citations in the English-language literature, most of them case reports. Among the many causes of elbow pain, cysts are primarily a diagnosis that depends on advanced imaging. When an elbow ganglion or perineural cyst is symptomatic, treatment has ranged from nonoperative to surgical intervention. Our case is unique because it is the first documented ultrasound-guided aspiration and cortisone injection that successfully alleviated a patient's symptoms. The procedures and outcomes of minimally invasive ultrasound-guided aspiration and steroid injections have not been described for cysts around the elbow.