Presentation
Two week history of neck pain.
Patient Data
There is a mass at the right anterior arch of the C1 vertebra with postcontrast enhancement. It is abutting but not extending into the odontoid process and there is no involvement of the C2 vertebral body. It is extending into the vertebral canal with associated mild narrowing of the canal but it is not contacting the spinal cord.
Conclusion: Solitary destructive lesion centered on the right anterior arch of the C1 vertebra.
Case Discussion
This patient had a known history of left renal cell carcinoma. MRI findings in keeping with renal cell carcinoma metastasis to the right anterior vertebral arch of C1.