case_images: PMC10246313_01
case_images: Incidental finding of cystic mass of the odontoid process on initial computed tomography, (a) coronal view, (b) sagittal view.
case_images: SNI-14-179-g001.jpg
case_images: PMC10246313_01_SNI-14-179-g001.jpg
case_images: F1
case_images: Polytrauma imaging workup revealed an incidentally discovered odontoid process cystic lesion [Figure 1] with internal fluid-fluid levels on MRI consistent with ABC [Figure 2].
case_images: T2-weighted magnetic resonance imaging demonstrating fluid-fluid levels of odontoid process cyst, highly suspicious for an aneurysmal bone cyst, (a) coronal view, (b) sagittal view.
case_images: SNI-14-179-g002.jpg
case_images: PMC10246313_01_SNI-14-179-g002.jpg
case_images: F2
case_images: Polytrauma imaging workup revealed an incidentally discovered odontoid process cystic lesion [Figure 1] with internal fluid-fluid levels on MRI consistent with ABC [Figure 2].
case_images: Two-month post-operative computed tomography demonstrating resolution of the cystic cavity of the odontoid process, (a) coronal view, (b) sagittal view.
case_images: SNI-14-179-g003.jpg
case_images: PMC10246313_01_SNI-14-179-g003.jpg
case_images: F3
case_images: There were no postoperative complications, and he was discharged the next day. 2-month postoperatively, a CT scan demonstrated a decrease in the size of the lesion with substantial new bone formation [Figure 3].
case_images: Six-month postoperative computed tomography demonstrating continued bony resolution of the cystic cavity, (a) coronal view, (b) sagittal view.
case_images: SNI-14-179-g004.jpg
case_images: PMC10246313_01_SNI-14-179-g004.jpg
case_images: F4
case_images: A repeat CT at 6 months showed no residual cystic lucency, formation of dense new bone, and only minimal irregularity of the cortex at the prior needle biopsy site [Figure 4].