Absent posterior arch of C1 vertebra
Presentation
Cervical pain for one month.
Patient Data
Age: 40 years
Gender: Male
From the case:
Absent posterior arch of C1 vertebra
X-ray
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Lateral
Absent posterior arch of C1 vertebra.
Hypertrophy of spinous process of C2 vertebra.
Case Discussion
Findings of congenital abnormality of the C1 vertebra.