ABSTRACT

A 30 years old male applied to our institution with the complaint of back pain due to polyostotic fibrous dysplasia (PFD) involving the posterior elements of C5 vertebra and the bodies of T5, T10, T12, L1 and L5 vertebrae, left iliac bone and right proximal femur. He had a previous history of open nonspecific T12 biopsy and three level posterior spinal instrumentation. Re-biopsy was performed and PFD diagnosis was confirmed. In the same session with open biopsy, spinal instruments were extracted due to local pain caused by their superficial position under the skin. Following the procedure, pain relieved. The patient remains asymptomatic at 26 months postoperatively.

There are few studies demonstrating PFD in the spinal column. Cervical, thoracic and lumbar spine, pelvis and proximal femur involvement altogether is rare. This is the first report of polyostotic fibrous dysplasia involving cervical, thoracic and lumbar spine together with pelvis and proximal femur.