PMC3134036_01
a Histological appearance of the carcinosarcoma. The carcinomatous component is composed of hepatoid adenocarcinoma and the sarcomatous component of spindle cells and large pleomorphic cells (HE, x400). b Tumor cells in the hepatoid areas show immunoreactivity for AFP (AFP, x400).
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F1
Microscopic examination showed that the polypoid tumor was a mixture of carcinomatous and sarcomatous components (fig. 1a). Reactivity for AFP was cytoplasmic in the hepatoid carcinoma lesion (fig. 1b).
PMC3134036_02
a Tumor showing a mixture of carcinomatous and sarcomatous components (HE, x100). b Tumor cells in the hepatoid areas immunoreactive for AFP (AFP, x400).
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F2
Histologically, the tumor was composed of carcinomatous and sarcomatous components (fig. 2a). Immunohistochemistry also revealed AFP-positivity in many tumor cells (fig. 2b).