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Case Reports in Orthopedics
Volume 2016, Article ID 9538075, 5 pages
Case Report

Lipoma Arborescens: Review of an Uncommon Cause for Swelling of the Knee

1Physical Medicine and Rehabilitation, Ghent University Hospital, 9000 Ghent, Belgium
2Department of Physical Medicine and Rehabilitation, AZ Sint-Jan, 8000 Bruges, Belgium
3Department of Radiology, Ghent University Hospital, 9000 Ghent, Belgium

Received 26 February 2016; Accepted 4 May 2016

Academic Editor: Werner Kolb

Copyright © 2016 M. De Vleeschhouwer et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Lipoma arborescens is a rare cause of chronic monoarticular arthritis, with only a few cases reported in the literature. It is most commonly seen in the knee, but cases in other joints such as the wrist, shoulder, and elbow have also been described. It is a benign condition, in which the subsynovial tissue is replaced diffusely by mature fat cells. We describe a case involving the knee and discuss the symptoms, diagnosis, and treatment.