Lipoma arborescens in bilateral knee joints

Abstract

We report a case of lipoma arborescens of both knee joints. In the face of chronic joint hydrops, it is important to consider lipoma arborescens in the differential diagnosis and to try to make early diagnosis, using magnetic resonance imaging or another means of examination.

Lipoma arborescens of the knee

“…The recommended treatment of LA is synovectomy [11, 23, 24, 26]. Open synovectomy was commonly used in the treatment of LA; however, it can lead to morbidities such as the stiffness of the knee and haematoma.…”

Bilateral Knee Lipoma Arborescens Combined with Osteoarthritis in Elderly Patients

“…19 These symptoms are somewhat similar to those of OA, and the findings at physical examination (such as reduced range of motion, a positive patella rubbing test and a negative floating patella test) are not pathognomonic of LA. Routine plain radiographs are insensitive to discern soft tissue masses 17 and lucent areas 6,20 within the suprapatellar pouch. Thus, in cases of combined knee LA and OA, the diagnosis of LA is easily missed on routine examination.…”

Bilateral lipoma arborescens of the knee in a child: a case report

“…Lipoma arborescens is a benign hyperplastic process that has been defined as a diffuse collection of fat replacing the subsynovial layer and resulting in the formation of villous projections [1–3, 5, 9, 10]. Clinically, lipoma arborescens generally results in mild pain together with a long‐standing effusion, especially in the knee joint.…”

“…Lipoma arborescens is an intraarticular condition that most commonly affects the knee joint [1–3, 5, 9, 10]. It is a rare disease in adults, and reported to be extremely rare in childhood [1–3, 5, 6].…”

“…It is a rare disease in adults, and reported to be extremely rare in childhood [1–3, 5, 6]. The disease is typically considered to be a unilateral condition, and bilateral disease has been reported to be extremely rare, especially in children [1–3, 5, 9, 10]. It may result in chronic painless swelling of the knee joint, and must be considered in the differential diagnosis of chronic joint effusions in childhood [3].…”