1Jemal A, Bray F, Center MM, et al. Global cancer statistics [ J ]. CA Cancer J Clin,2011,61 (2) :69 -90.
2AhmedinJemal DVM, Tiwari RC, murray T, et al. Cancer statistics [ J]. Cancer J Clin ,2004,54( 1 ) :8 - 29.
3J OVY, Fletcher CDM. Who classification of soft tissue tumours:an update based on the 2013 (4th) edition [ J ]. Pathology, 2014,46 (2) :95 - 104.
4Folpe AL, Hill CE, Parham DM, et al. Immunohistochemical detection of FLI- 1 protein expression: a study of 132 round celltumors with emphasis on CD99 - positive mimics of Ewing' ssarcoma/primitiveneuroectodennal tumor [ J ]. Am J SurgPathol, 2000, 24 ( 12 ) 1657 - 1662.
7Montano N, D'Alessandris QG, D'Ercole M, et al. Tumors of the pe- ripheral nervous system:analysis of prognostic factors in a series with long-term follow-up and review of the literature [ J ]. J Neurosurg, 2015.12(4) :1 -9.
