Fig. 3
From: Breast metastasis of pulmonary pleomorphic carcinoma: a case report
Histology of the lung tumor. a Hematoxylin and eosin stain, ×200. Lung tumor of the present case exhibits dyscohesive growth of spindle, oval, or polygonal tumor cells. Multinucleated giant cells are scattered. b AE1/AE3 immunohistochemistry, ×200. AE1/AE3-positive tumor cells are scattered. c ER immunohistochemistry, ×200. There are no ER-positive tumor cells