Atypical course in Stickler syndrome

We report about a 12-year-old boy with a Stickler syndrome. Because of osteonecrosis in the femoral head in MRI the initial diagnosis was dysplasia epiphysealis capitis femoris. The patient developed a progressive stiffness of the hip and a retinal detachment. A molecular investigation showed a Stickler syndrome. Stickler syndrome is an autosomal dominant hereditary disease. It has a very low incidence and a rare association with hip disease. Usually the patients suffer from hypermobility. In our case the course was atypical and diagnosis delayed.