原始神经外胚叶肿瘤 PNET ; primitive neuroectodermal tumor ; peripheral primitive neuroectod ermal tumors
原始神经外胚叶瘤 primitive neuraectodermal tumor PNET ; primitive neuroectodermal tumor ; primitive neumedodeimal tumor ; peripheral primitive neuroectodermal tumor
或原始神经外胚叶肿瘤 Primitive Neumectodermai Tumor
结论溶骨性骨破坏和巨大软组织肿块是骨原始神经外胚叶肿瘤的常见影像学表现，病灶内钙化和局部淋巴结肿大少见。
Conclusion The osteolytic lesion and a large soft tissue mass are common radiological appearances of bone PNETs and calcification and regional lymphadenopathy are rarely seen.
资料与方法搜集5例骨原始神经外胚叶肿瘤的影像及临床、手术病理资料，分析其影像学表现。
Materials and Methods The radiological features, clinic and pathological data of 5 patients with bone PNETs were retrospectively analyzed.
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