• Mustafa Kemal Ilik, Abdülfettah Tumturk, Halil Ulutabanca, Ahmet Kücük, and Rahmi Kemal Koc.
• Department of Neurosurgery, Farabi Hospital, Konya, Turkey. Electronic address: mkilik@gmail.com.
• World Neurosurg. 2016 Jul 1; 91: 669.e15-9.

BackgroundThe craniocervical junction is a complex anatomic location that contains the occipital bone, atlas, axis, and important complex ligamentous structures. The stability of this region is ensured only with the help of ligaments.Case DescriptionA 6-year-old boy was admitted to our clinic for neck pain. Computed tomography and magnetic resonance imaging revealed a lytic bone lesion involving the C2 vertebral body and pedicle without odontoid tip. The tumor was resected using an anterior retropharyngeal approach and a wide marginal resection method. The odontoid tip and alar ligaments were protected, and the costal autografts were located between the C1-odontoid tip and the C3 body. The costal graft was stabilized in the C3 body with a miniplate. Then, C1-C3 posterior fixation with fusion was performed. The craniocervical junction was not considered unstable because the occipital bone was not involved in the fusion. Histologic examination confirmed the diagnosis of eosinophilic granuloma. Fusion was detected on a 1-year postoperative cervical computed tomography scan.ConclusionsThe occiput should not be involved in the fusion area when the alar ligaments are preserved during surgery for a C2 lesion.Copyright © 2016 Elsevier Inc. All rights reserved.

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