Psammona body type meningioma in temporal bone:a case report
An 8years old patient was observed tumor in external auditory canal.No fever,otorrhea,pain and tinnitus.CT scan showed external auditory canal and mastoid occupancy lesions.The pathologic results showed :Spindle cell tumor with calcification.Immunohistochemical results showed CK(-),Vim(+),CD68(±),CD163(±),Ki-67(3%-5%),EMA(+),S-100(-),CD34(+).The pathological diagnosis was psammona body type meningioma.
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