Oohori Yasuo, Seichi Atsushi, Kawaguchi Hiroshi, Tajiri Yasuhito, Oda Hiromi, Nakamura Kozo
Department of Orthopaedic Surgery, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
J Orthop Sci. 2004;9(1):90-3. doi: 10.1007/s00776-003-0736-5.
A retroodontoid pseudotumor is a nonneoplastic mass arising posterior to the odontoid process. We describe a 67-year-old woman admitted to our hospital with numbness of the left upper extremity, dysbasia, and impairment of fine motor movement of the fingers. She was diagnosed with myelopathy due to a retroodontoid pseudotumor underlying rheumatoid arthritis. According to previously published reports, reduction of the pseudotumor was achieved by posterior fusion alone. However, in the present report, the tumor was very large, and there was no instability at the atlantoaxial segment. Therefore we managed the patient by resection of the mass through a high lateral cervical approach without fusion. The spinal cord symptoms diminished rapidly.
齿突后假瘤是一种发生于齿突后方的非肿瘤性肿块。我们描述了一名67岁女性，因左上肢麻木、行走困难及手指精细运动障碍入院。她被诊断为类风湿关节炎所致齿突后假瘤引起的脊髓病。根据既往发表的报告，单纯后路融合可使假瘤缩小。然而，在本报告中，肿瘤非常大，寰枢椎节段无不稳定。因此，我们通过高位颈外侧入路切除肿块而不进行融合来治疗该患者。脊髓症状迅速减轻。
