Fig. 5From: The diagnostic pitfalls of lumbar disc herniation---- malignant sciatic nerve tumour: two case reports and literature reviewHE staining and immunohistochemistry staining in case 2. a, b HE staining shows a large number of fusiform tumour cells arranged in a palisade-like pattern. c The tumour sections were positive for S-100 by immunohistochemistry stainingBack to article page