Effective combined therapy for pulmonary epithelioid hemangioendothelioma: A case report

Figure 3 Immunohistochemical findings. A: Tumor cells, in a short strip form and with epithelial cell features, have no nuclear division and contain abundant eosinophils in the cytoplasm (× 20). B and C: Immunohistochemical analyses for CD34 (B) and CD31 (C) are positive both in the cytoplasm and the tumor cell membrane (× 40); D: Immunohistochemical analysis for Vimentin reveals positivity in the cytoplasm (× 40).