Récidive à localisation rare d'une synovite villo-nodulaire du genou

Villonodular synovitis is a rare benign condition characterized by villous or nodular hyperplasia of the synovial of unknown etiology. It causes pain and articular swelling. MRI is the imaging modality of choice in patients with a clinical suspicion of villonodular synovitis, but histopathological examination gives definitive diagnosis. Its natural evolution is marked by a high rate of recurrence and treatment is often difficult. We present the case of a 30 year old patient who showed recurrent villo-nodular synovitis in the posterior compartment of the left knee (A,B,C) after subtotal synovectomy in 2012. In the second step, the patient underwent posterior synovectomy (D) through a posterointernal approach after locating the popliteal pedicle. The treatment of this disease is not well defined given the rarity of the condition, but total synovectomy remains the best treatment option to reduce the risk of recurrence.