Solitary Fibrous Tumor Arising from the Sphenoid Sinus
Histopathological features of the tumor. (a) the spindle cells are arranged in a patternless fashion in the collagenous matrix on hematoxylin-eosin staining (200). (b) the vast majority of the tumor cells were stained diffusely and strongly for CD34 (400). (c) cytoplasm in the numerous tumor cells expressed the Bcl-2 (400).
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