Figure 3From: Massive malignant solitary fibrous tumor arising from the bladder serosa: a case reportHistopathology of resected solitary fibrous tumor. a. Hematoxylin and eosin stain of tumor showing hypercellularity with moderate atypia. b. Hematoxylin and eosin stain showing spindle cells within hyalinized stroma in the tumor. c. Ki67 proliferation index (>10 mitoses per 10 high power fields, positive cells stained brown). d. Diffuse CD34 positivity within the tumor.Back to article page