Objectives: Foramen transversarium are located on the transverse process of cervical vertebrae and are the cardinal features of cervical vertebrae. These formina are known to exhibit variations in size, shape and may be absent or duplicated. The objective of present study is to study the incidenceand shape of accessory foramen transversarium in dried cervical vertebrae. Methods: A total of 86 cervical vertebrae of unknown are analyzed to see the accessory foramen transversarium. Results: In the examination performed in 86 servical vertebrae, 15 (17.4%) double foramen transversarium and 14 (16.3%) asymmetric foramen transversarium variations were observed. In 11.6% of the cases, unilateral double foramen transversarium and 5.8% bilateral bilateral foramen transversarium were seen. The frequency of these variations was 10.5% in typical cervical vertebrae and 15.1% in atypical cervical vertebrae. Conclusion: Knowledge of accessory foramen transversarium is important for clinicians because it may affect the course of vertebral vessels & nerves, which causes various symptoms to patients. These variations are importance and helpful for anatomist, anthropologist, surgeons and radiologist. Keywords: Cervical vertebrae, Variations, Foramen transversarium
Corresponding Author: Bolatli G.