BILATERAL DUPLICATION OF THE PRIMARY ULNAR OSSIFICATION CENTER IN ELLIS-VAN-CREVELD-SYNDROME

A patient with Ellis-van Creveld (EvC) syndrome and bilateral duplicat ion of the primary ulnar ossification center is presented. Abnormal os sification involving secondary ossification centers of the femur and t ibia as well as duplication of primary ossication centers in the carpa l bones are well described in EvC. No abnormality of ulnar ossificatio n has been noted in patients with EvC or any other skeletal dysplasia. The occurrence of bilateral duplication of ulnar ossification centers extends the clinical findings of the EvC syndrome. The gap between th e ossified areas could be misinterpreted as a fracture and thus lead t o a suspicion of osteogenesis imperfecta prenatally or traumatic fract ure postnatally.