Research Article

Tumor Expression of the Carcinoembryonic Antigen Correlates with High Mitotic Activity and Cell Pleomorphism Index in Lung Carcinoma

Figure 1

Microphotographs of lung squamous cell carcinomas sections. (a) and (c) represent hematoxylin and eosin staining. Vote malignant cells exhibiting a moderate mitotic activity index and high degree of cell pleomorphism, respectively. (b) and (d) represent tissue detection of CEA antigen. Note the moderate (b) and intense (d) reactivity of ior cea1 Mab. The reactivity of this Mab was mainly located in the membrane and also in the cytoplasm of malignant cells. White bar = 100 μm.
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(d)