Fibrodysplasia ossificans progressive (FOP) or Munchmeyer's disease is an autosomal dominant disease affecting the musculoskeletal system. During this rare condition, an inflammatory process is responsible for progressive soft tissue calcification. We report the case of a 15-year-old patient with joint deformities, subcutaneous dorsal and hard lumbosacral nodules and rigidity of the right shoulder and elbow. Clinical examination revealed dysmorphic facial features. Magnetic resonance showed heterotopic ossification. The patient was treated with monthly pamidronate cures and short-term corticosteroid therapy during painful flareups

Keywords : Fibrodysplasia ossificans progressiva, Corticosteroid, Bisphosphonates