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

Abstract

We report a case of childhood lipoma arborescens of both knee joints who had been erroneously diagnosed to have initially acute rheumatic fever and subsequently oligoarticular juvenile rheumatoid arthritis. She had taken anti-inflammatory medication for 8 years without remission of the effusion. Magnetic resonance imaging (MRI) and synovectomy revealed the diagnosis of lipoma arborescens. Lipoma arborescens should be kept in mind in the differential diagnosis of refractory chronic joint effusion and synovial hypertrophy in the childhood period, and MRI yields the correct diagnosis in this setting.

Lipoma arborescens in a 16‐year‐old male: A case report

“…There has been fewer than 100 cases reported in the literature, 17 of which fewer than 15 were children, making it extremely rare in this age group. 4 , 6 , 7 , 8 , 9 The peak incidence is estimated to be between the third and fifth decades with a male predominance. 18 Sanamandra et al, 2 however, did not observe any sex preponderance.…”

“… 3 The etiology is unknown and usually presents in adults and is, however, rare in children. 4 , 5 , 6 , 7 , 8 Even though the condition is uncommon, it should be considered as a differential diagnosis when patients present with chronic atraumatic knee pain and effusion. 9 We present a case of lipoma arborescens in the left knee of a 16‐year‐old boy and discuss the clinical and laboratory workup and subsequent management.…”

Lipoma Arborescens in a 16-year old male: A case report

“…10,11 It commonly affects the knee 3 but there has been reported cases in the shoulder 12 , elbow 13 , wrist 14 , hip 15 as well as in synovial sheath and bursae which are extra-articular. 16 There has been fewer than 100 cases reported in the literature 17 of which fewer than 15 were in children, making it extremely rare in this age group 4,[6][7][8][9] . The peak incidence is estimated to be between the third and fifth decades, with a male predominance 18 .…”

“…3 The etiology is unknown and usually presents in adults and is however rare in children. [4][5][6][7][8] Even though the condition is uncommon, it should be considered as a differential diagnosis when patients presents with chronic atraumatic knee pain and effusion. 9 We present a case of lipoma arborescens in the left knee of a 16-year old boy and discuss the clinical and laboratory workup and subsequent management.…”

Lipoma Arborescens: Rare Case of Rotator Cuff Tear Associated With the Presence of Lipoma Arborescens in the Subacromial-Subdeltoid and Glenohumeral Bursa

“…Lipoma arborescens is rare, with fewer than 100 cases described in the literature, in the English language. It typically affects patients between their fifth and seventh decades of life, although cases in young adults and during childhood have also been reported 5 , 6 , 7 . Men and women seem to be equally affected (2) .…”