Malignant peripheral nerve sheath tumor (MPNST) was a spindle cell sarcoma, which could arise from nerve tissue, neurofibroma or showing nerve sheath differentiation.

• 摘要恶性周边神经髓鞘肿瘤是从神经组织、神经纤维瘤或是呈现神经髓鞘分化的梭状细胞肉瘤。