Kalia Vishal, Daher Omar, Garvin Greg, Chhibber Siddharth, Shepherd Jessica
Department of Radiology, St. Joseph Hospital, London, ON, N6A 4V2, Canada.
Skeletal Radiol. 2018 Oct;47(10):1425-1429. doi: 10.1007/s00256-018-2915-7. Epub 2018 Mar 2.
Lipoma arborescens is a rare non-neoplastic condition that affects the synovial lining of joints and bursae accounting for less than 1% of all lipomatous lesions. Characterized by villous proliferation of the synovium, it is an uncommon cause of intra/periarticular mass presenting as a painless, slowly progressive longstanding swelling, and is sometimes accompanied by intermittent monoarticular effusions. We describe a rare case of bilateral lipoma arborescens in the bicipitoradial bursae in a young male referred for MRI evaluation of spontaneous bilateral elbow swelling. We chose to bring this case to light because of the rare simultaneous involvement of the bicipitoradial bursae bilaterally and the role of MR in providing a definite diagnosis, hence obviating the need for biopsy and avoiding consideration of other complex intra/periarticular masses.
树枝状脂肪瘤是一种罕见的非肿瘤性疾病，影响关节和滑囊的滑膜衬里，占所有脂肪瘤性病变的比例不到1%。其特征为滑膜的绒毛状增生，是关节内/关节周围肿块的罕见原因，表现为无痛、缓慢进展的长期肿胀，有时伴有间歇性单关节积液。我们描述了一例年轻男性双侧肱桡滑囊树枝状脂肪瘤的罕见病例，该患者因双侧肘关节自发性肿胀接受MRI评估。我们选择公布此病例，是因为双侧肱桡滑囊同时受累的情况罕见，且MRI在明确诊断中发挥了作用，从而无需进行活检，并避免考虑其他复杂的关节内/关节周围肿块。
