Figure 2From: Fibro-osseous pseudotumor of the digit presenting as an ulcerated lesion: a case report Photomicrography after applying immunohistochemical stains revealing. a) ASMA stain highlighting blood vessels with focal positivity in stromal cells. b) CD34 stain showing focal positivity in stromal cells. c) and d) S100 stain also revealed focal staining in stromal cells.Back to article page