Most of the cases mistaken as synovial sarcoma were MPNST that accounted for 31.8%.

最易误诊为滑膜肉瘤的肿瘤是恶性周围神经鞘膜瘤，占31 .8%。

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Results There were 14 schwannomas, 5 neurofibromas, 5 malignant peripheral nerve sheath tumors(MPNST), and 1 peripheral primitive neuroectodermal tumor.

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。

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The present results indicate that the MPNST is an uncommon aggressive neoplasm, and it is recommended that patients with NF-I be closely followed up for MPNST development.

而对于患有纤维神经瘤病的病人应该密切的追踪是否产生此恶性肿瘤。

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