RT Book, Section A1 Reichman, Eric F. SR Print(0) ID 57711318 T1 Chapter 105. Ganglion Cyst Aspiration and Injection T2 Emergency Medicine Procedures, 2e YR 2013 FD 2013 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-161352-1 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=57711318 RD 2024/10/11 AB Ganglion cysts, also known as synovial cysts or ganglia, are the most common soft tissue tumors of the wrist and hand.1 They are a common reason for patients to present to the Emergency Department. The chief complaint is usually a mild pain or ache, exacerbated by movement, and localized to a 1 to 2 cm mass on the wrist or hand. Patients may also present with concerns about a painless “lump.” Acute trauma prior to presentation is uncommon, though patients often give a history of repetitive motion at the site. The mass usually increases in size progressively over time or, occasionally, may grow rapidly over a short period. Patients presenting to the Emergency Department with ganglia may have already attempted one of several popular home remedies, including homeopathic medications or striking the cyst firmly with a large book or hammer.