Fig. 5From: Retroperitoneal solitary neurofibroma mimicking lymph node metastasis of colon cancer: a case reportPathological findings. A Hematoxylin and eosin stain showed complicated spindle cells with polymorphic nuclei and eosinophilic cytoplasm (× 200). B Immunohistochemical stain for S100 was positive (× 200). C–E Immunohistochemical stain for Desmin and CD34, c-kit were negative (× 200). F Immunohistochemical stain for MIB-1 index was 2% (× 100)Back to article page