An unusual case of a massive intra articular angiolipoma of the knee Case report and review of literature
Abstract We report a case of a 59 year old woman who presented with new onset knee pain after starting an exercise program. Clinical examination pointed to a possible lateral meniscal tear. This was confirmed radiologically, but an intra articular mass suspected to be a lipoma was also found on MRI. Excision biopsy was done and diagnosis was confirmed histologically. To the best of our knowledge, this is the case with the largest intra articular knee angiolipoma reported till date. The differentiation between this type of mass and other more common encountered conditions, like lipoma arborescens and Hoffa's syndrome, is discussed.