Figure 2.

A, Cancer cells exhibit hyperchromatic nuclei, round to fusiform shape, and high mitotic activity with little cytoplasm and an absence of nucleoli (H&E). B, The immunohistochemical staining of the specimen is positive for CgA.

A, Cancer cells exhibit hyperchromatic nuclei, round to fusiform shape, and high mitotic activity with little cytoplasm and an absence of nucleoli (H&E). B, The immunohistochemical staining of the specimen is positive for CgA.