J Korean Orthop Assoc.  2020 Aug;55(4):354-358. 10.4055/jkoa.2020.55.4.354.

Bilateral Lipoma Arborescens of the Knee in an Adolescent Patient

• Kim HJ
• Kim JW
• Lee HJ
• Kyung HS

• KMID: 2505771
• DOI: http://doi.org/10.4055/jkoa.2020.55.4.354

Abstract

Lipoma arborescens (LA) is a rare lesion that causes joint effusion and pain. LA usually presents as a unilateral knee lesion, and bilaterallesions are extremely rare. LA among adolescent patients is also extremely rare with the disorder having a much higher incidence amongadults. This paper reports a 14-year-old boy who was treated for bilateral knee LA. X-rays revealed the characteristic features of LA in bothknees, and arthroscopic synovectomy was performed to resect the lesions. Postoperative recovery progressed smoothly, and the patientwas eventually relieved of pain and swelling. LA should be considered when adolescent patients present with bilateral pain and swelling,even though this condition is rare in this age group. Furthermore, surgical synovectomy for a complete resection is an appropriate treatmentoption.

Keyword

knee; synovial membrane; arthroscopy