Abstract:
A 23 year old Asian female presented with swelling of right knee joint for 5
years with history of exacerbations and remissions of symptoms. She was
initially diagnosed as a case of suprapatellar bursitis based on clinical and X-
ray findings. Further evaluation with higher imaging modalities was
pathognomonic of lipoma arborescens. Patient underwent synovectomy and
the diagnosis was confirmed histologically. We describe a histologically
proven case of lipoma arborescens to highlight the imaging findings on X-
ray, Ultrasound and Magnetic resonance imaging with arthroscopic
correlation. The unique feature of this case report is multimodality imaging
correlation with arthroscopy and histopathology findings. We have
highlighted the pathognomonic imaging findings of this rare but benign intra-
articular lesion and also discussed the differential diagnosis in detail.
