Introduction:Chordoma is an extremely rare malignant bone tumor that mainly affects the sacrococcygeal and spheno-occipital regions. Localization in the spine is exceptional and occurs mainly in young individuals.Case Report: We report the case of a 32-year-old male patient with a chondroid chordoma in the dorsal spine which is a very rare histological subtype of chordoma. Conclusion:The chondroid chordoma is an uncommon malignant bone tumor. An intrathoracic chordoma manifesting as a posterior mediastinal tumor is unusual, it appears especially in young individuals. The imaging helps to allow a better characterization of the tumor.