Fig. 3From: Pulmonary tumor with Notochordal differentiation: a case report and morphologic, Immunohistochemical and molecular study of benign Notochordal cell tumor originating in the lungThe tumor cells were positively immunohistochemical staining for CK (AE1/AE3) (a), Brachyury (b), S100 (c), EGFR (d) negatively staining for TTF-1 (e)Back to article page