Clinicopathologic analysis of solitary fibrous tumor of meningeal
LI De-chang
YUE Ying
REN Li
ZHENG Ji-chun
MAO Zhi-yuan
Abstract：Objective To explore the clinicalpathological features,immunohistoehemieal characteristics and differential diagnosis of solitary fibrous tumor(SFT) of the meningeal.Methods A case suffering from SFT of the meningeal was examined with light microscopy and immunohistochemistry,including CD34,Bcl-2,CD99,Vim-entin,CKpan,GFAP,EMA,CD117,S-100 and Ki67,and related literatures were reviewed.Resuits The patient was a 32-year-old man,who was found neoplasm in IA vertebrae after removing the solitary fibrous tumors of the right temporal meningeal.Grossly,the tumor was composed of irregular bone fragments and soft tissue with dimension 2 cm×2 cm x 3 cm and dark gray.solid,fish-like on cut surface.Microscopically,the tumor was composed of bland spindle shaped cells and dense collagenous bands,with fascicular,storiform or haphazard arrangements.Focal areas showed a haemangiopericytoma like structure.Immunohistochemically,the tumor cells were positive for CD34.Bcl-2,CD99 and Vimentin,but negative for CKpan,GFAP,EMA,CD117,S-100,Ki-67 index was less than 5%.Condusious SFI"is a very rare tumor in meningeal.which often manifests local recurrence and metastasis.It should be differentiated from a variety of spindle cell tumors.Diagnosis is based on hisitologieal features supplemented with immunohistochemical findings.It's very difficult to predict the biological behavior,which requires a long-term follow-up.
Keywords：Solitary fibrous tumorMeningeal neoplasmclinicopathologic
Publication Date：2011-01-01
Online Publishing Date：2026-09-14(First online date of this platform, not the publication date of the document)