黏液性乳头状室管膜瘤,最常出现在脊髓终丝。注意乳突状结构周围的细胞都有粘液样结缔组织核心。如果肿瘤未发生在马尾神经根附近，手术切除将非常容易。
This is a myxopapillary ependymoma, which is typically found arising in the filum terminale of the spinal cord. Note the cells around papillations that have a myxoid connective tissue core. Surgical removal is made easier if this tumor has not grown around nerve roots of the cauda equina.