目的探讨原始神经外胚层瘤（PNET）的病理学特点及其临床意义。
Objective To study the pathological characteristics of primitive neuroectodermal tumor(PNET) of bone and soft tissue.
结果神经鞘瘤14例，神经纤维瘤5例，恶性周围性神经鞘瘤（MP NST） 5例，原始神经外胚层瘤1例。
Results There were 14 schwannomas, 5 neurofibromas, 5 malignant peripheral nerve sheath tumors(MPNST), and 1 peripheral primitive neuroectodermal tumor.
结果肿瘤含有横纹肌样细胞、原始神经外胚层、上皮及间叶多向分化成分。
Results The tumor containing rhabdoid cells, variable components of primitive neuroectodermal, epithelial and mesenchymal components.
目的探讨幕上原始神经外胚层肿瘤的临床特点、影像学特征、综合治疗方法及对预后影响。
Objective To analyze the clinical features, neuroimaging presentations, and treatment and prognosis of supratentorial primitive neuroectodemal tumors.
方法分析经手术病理证实的9例原始神经外胚层肿瘤的MRI表现，其中男6例，女3例，平均年龄32 6岁。
Methods MRI manifestations of 9 PNET diagnosed via operation and pathological examination were analyzed. There were 6 men and 3 women, and the mean age was 32.6 years.
材料与方法：对2例骨原始神经外胚层肿瘤的临床表现、影像特征进行描述，并结合文献分析。
Materials and Methods: The clinical findings and the imaging features of 2 cases with osseous PNEI were described and analyzed.
结果：(1)骨原始神经外胚层肿瘤来源于神经嵴的胚胎迁移细胞。
Results: (1) Osseous PNET originated from embryonic migrating cells of neural crest.
结果：(1)骨原始神经外胚层肿瘤来源于神经嵴的胚胎迁移细胞。
Results: (1) Osseous PNET originated from embryonic migrating cells of neural crest.
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