title: Crowned dens syndrome: a case report and review of the literature.
abstract: The crowned dens syndrome (CDS), also known as periodontoid calcium pyrophosphate dehydrate crystal deposition disease, is typified clinically by severe cervical pain, neck stiffness and atlantoaxial synovial calcification which could be misdiagnosed as meningitis, epidural abscess, polymyalgia rheumatica, giant cell arthritis, rheumatoid arthritis, cervical spondylitis or metastatic spinal tumor. Crystalline deposition on cervical vertebrae is less well known disease entity and only a limited number of cases have been reported to date. Authors report a case of CDS and describe the clinical feature.
authors.affiliation: Department of Neurosurgery, Soonchunhyang University College of Medicine, Seoul, Korea.
authors.forename: Gwang Soo
authors.initials: GS
authors.lastname: Lee
authors.affiliation: Department of Neurosurgery, Soonchunhyang University College of Medicine, Seoul, Korea.
authors.forename: Ra Sun
authors.initials: RS
authors.lastname: Kim
authors.affiliation: Department of Neurosurgery, Soonchunhyang University College of Medicine, Seoul, Korea.
authors.forename: Hyung Ki
authors.initials: HK
authors.lastname: Park
authors.affiliation: Department of Neurosurgery, Soonchunhyang University College of Medicine, Seoul, Korea.
authors.forename: Jae Chil
authors.initials: JC
authors.lastname: Chang
keywords: Axis; Calcium pyrophosphate; Computed tomography; Neck pain