PT - JOURNAL ARTICLE AU - Katsumasa Nakazawa AU - Koichi Yano AU - Yasunori Kaneshiro AU - Hideki Sakanaka TI - Endoscopic resection of tendon xanthoma in the elbow of a patient with cerebrotendinous xanthomatosis AID - 10.1136/bcr-2021-244931 DP - 2021 Nov 01 TA - BMJ Case Reports PG - e244931 VI - 14 IP - 11 4099 - http://casereports.bmj.com/content/14/11/e244931.short 4100 - http://casereports.bmj.com/content/14/11/e244931.full SO - BMJ Case Reports2021 Nov 01; 14 AB - We describe the case of a 44-year-old woman with cerebrotendinous xanthomatosis (CTX) who had a tendon xanthoma on the right olecranon. The patient successfully underwent endoscopic resection. There were no signs of recurrence on MRI 2 years postoperatively. There were no complications related to the surgery, and the patient is completely satisfied with the treatment outcomes. CTX, a genetic metabolic disorder, is associated with the development of tendon xanthomas. Endoscopic resection of tendon xanthoma in the elbow of patients with CTX is a less invasive method than open resection.