Fig. 3From: A rare solitary fibrous tumor in the ischiorectal fossa: a case reporta Hematoxylin and eosin staining. Low power magnification (× 200) demonstrates a “patternless” architecture with spindle-shaped cells, abundant stromal collagen bundles, and ectatic vessels. b CD34 staining demonstrates diffuse positive staining at high power magnification (× 400)Back to article page