TY - JOUR T1 - A Nodular Calcification of the Alar Ligament Simulating a Fracture in the Craniovertebral Junction JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 1962 LP - 1963 VL - 27 IS - 9 AU - K.-B. Sim AU - J.K. Park Y1 - 2006/10/01 UR - http://www.ajnr.org/content/27/9/1962.abstract N2 - SUMMARY: 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 × 7.6 × 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. ER -