Presentation
Sinus and allergy problems; currently asymptomatic. Imaged for dental implant assessment.
Patient Data
Age: 55 y
Gender: Female
From the case:
Fusion anomaly of C1 - anterior arch
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Incidental finding on cone beam CT examination using thickened MIP (maximum intensity profile) of 10mm. There is a vertical midline defect through the anterior arch of C1 with an small adjacent ossicle superiorly.
Case Discussion
Anterior arch anomalies at C1 are not common, and result from a failure of union of variably located ossification centers.
Dentists are using low dose cone beam volumetric imaging for many dental tasks because of low dose, high spatial resolution and 3D color reconstruction capabilities.
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