Kotani Toshiaki, Okawa Akihiko, Akazawa Tsutomu, Sakuma Tsuyoshi
Department of Orthopedic Surgery, Seirei Sakura Citizen Hospital, Sakura-shi, Japan.
BMJ Case Rep. 2014 Feb 19;2014:bcr2013202984. doi: 10.1136/bcr-2013-202984.
Migration of neurogenic spinal tumours is uncommon. However, such possible mobility should be kept in mind during surgery for neurogenic tumours whenever the lesion is not found at the anticipated level. Conventional static imaging techniques, such as myelography and MRI, have not documented dynamic motion of tumours. A 12-year-old boy was diagnosed with a neurogenic spinal tumour in the thoracolumbar region. To assess the migratory tendency of the tumour, cine MRI was performed to acquire dynamic images under postural change. Cine MRI showed that the tumour migrated up to the lower part of the T12 vertebra from the upper part of the L1 vertebra during a change in spinal posture from cervical flexion to extension. The tumour was completely removed and histological examination revealed the tumour to be an ependymoma. Cine MRI is useful for dynamically and non-invasively assessing the migratory tendency of spinal tumours.
神经源性脊柱肿瘤的迁移并不常见。然而，在神经源性肿瘤手术过程中，只要在预期位置未发现病变，就应考虑到这种可能的移动性。传统的静态成像技术，如脊髓造影和磁共振成像（MRI），尚未记录到肿瘤的动态移动。一名12岁男孩被诊断为胸腰段神经源性脊柱肿瘤。为评估肿瘤的迁移倾向，进行了电影磁共振成像（cine MRI）以获取姿势改变下的动态图像。电影磁共振成像显示，在脊柱姿势从颈椎前屈变为后伸的过程中，肿瘤从L1椎体上部迁移至T12椎体下部。肿瘤被完全切除，组织学检查显示该肿瘤为室管膜瘤。电影磁共振成像有助于动态、无创地评估脊柱肿瘤的迁移倾向。
