Synovial Osteochondromatosis of the Peritrochanteric Femoral Bursa: A Case Report

Synovial osteochondromatosis is an uncommon and chronic condition characterized by a metaplasia of the synovium leading to the formation of cartilaginous or osteocartilaginous bodies in a joint and less commonly, bursa or a tendon sheath. The imaging appearances are variable depending on the stage of the disease. Its development in the peritrochanteric femoral bursa remains exceptional. To our knowledge, this localisation has not been previously described. We present in this work the case of synovial chondromatosis of péritrontéric left femoral bursae diagnosed in a 55-year-old woman. Hip pain was the main symptom. The diagnosis was confirmed by computed tomography (CT) and magnetic resonance imaging (MRI). A breef review of the litterature was also performed to recall the main imaging caracteristics of this rare localisation.