Solitary Fibrous Tumor of the Central Nervous System: A Report of Two Cases with Emphasis on Diagnostic Pitfalls

Figure 3

H&E solitary fibrous tumor WHO grade I. (a) Characteristic patternless growth pattern with oval to spindle-shaped tumor cells with a collagenous background (4x). (b) Tumor punctuated by thin-walled, branching vessels (10x). Immunohistochemically tumor cells show diffuse and strong staining with CD34 (c) and STAT6 (d) (40x).

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