椎管内髓系肉瘤临床十分罕见,现将2病例报告如下,并通过对其临床表现、诊断、治疗及预后等问题进行文献复习,以提高对该肿瘤的认识。1病历摘要例1:女,21岁。因突发胸背疼痛7 d、双下肢麻木无力5 d入院。查体:一般状态好,全身未见明显出血点,双下肢肌力Ⅳ级,双侧膝踝反射亢进,剑 The myeloid sarcoma of the spinal canal is very rare clinical report of 2 cases are as follows, and its clinical manifestations, diagnosis, treatment and prognosis issues such as literature review to improve awareness of the tumor. 1 Medical Summary Example 1: Female, 21 years old. Due to sudden chest and back pain 7 d, numbness of lower extremity 5 d admission. Physical examination: the general state is good, the body had no obvious bleeding point, lower limb muscle strength grade Ⅳ, both knee and ankle hyperreflexia, sword