Abstract：
Spinal teratomas are infrequent lesions in the pediatric population. These lesions can be extradural, intradural or intramedullary. We present a case of an 8-month-old boy that was assessed for underdevelopment of motor milestones. The neurologic examination revealed hyporeflexia, decreased sensation and flaccid paraplegia. MRI of the spine revealed two simultaneous and independent lesions in the extradural and intradural compartment. A laminectomy was performed for the T4-T7 vertebrae with total resection of both lesions. The histopathological analysis confirmed both lesions to be mature cystic teratomas. At the 1-year follow-up, the patient remained with no recovery of neurological function. A debate takes place regarding the etiology of formation of these lesions in the spine. The simultaneous presentation of two independent lesions in this patient could contribute to define the flawed migration of germ cells theory as the etiology for formation of teratomatous lesions in the spine.
摘要：
脊髓畸胎瘤是儿科人群中罕见的病变。这些病变可能是硬膜外的,硬膜内或髓内。我们介绍了一个8个月大的男孩，该男孩被评估为运动里程碑发育不足。神经系统检查显示反射减退,感觉下降和弛缓性截瘫。脊柱的MRI显示硬膜外和硬膜内室有两个同时和独立的病变。对T4-T7椎骨进行椎板切除术，并全部切除两个病变。组织病理学分析证实这两个病变均为成熟的囊性畸胎瘤。在1年的随访中，患者仍未恢复神经功能。关于脊柱中这些病变形成的病因发生了争论。该患者同时出现两个独立的病变可能有助于将生殖细胞理论的有缺陷的迁移定义为脊柱中畸胎瘤病变形成的病因。
