Abstract
We report a case of an incidental nodular calcification of the alar ligament simulating a fracture in the craniovertebral junction of a previously healthy 24-year-old man. Three-dimensional CT and MR imaging revealed a 7.2 x 7.6 x 4.0 mm nodular calcification in the right alar ligament with normal adjacent bony structures. Serial cervical dynamic radiographs and open-mouth views showed that the cervical spine was stable without any change in the calcification.
MeSH terms
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Adult
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Brain Concussion / diagnosis
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Calcinosis / diagnosis*
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Diagnosis, Differential
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Humans
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Image Processing, Computer-Assisted*
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Imaging, Three-Dimensional*
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Ligaments, Articular / pathology*
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Magnetic Resonance Imaging*
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Male
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Occipital Bone / injuries*
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Occipital Bone / pathology
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Odontoid Process / injuries*
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Odontoid Process / pathology
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Orbital Fractures / diagnosis
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Skull Fractures / diagnosis
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Spinal Fractures / diagnosis*
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Tomography, X-Ray Computed*