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Figure 3 | BMC Cancer

Figure 3

From: Ectopic TSH-secreting pituitary tumor: a case report and review of prior cases

Figure 3

Histological examination of resected tumor tissue. A &B, Histological examination of resected tumor tissue (×200). A, Irregular cells showing tumor tissue invasive growth involving the submucosa. B, Cytoplasm is filled with fine granules in tumor cells. C &D, Immunohistochemical detection of TSH and GH (×200). C, Most tumor cells express TSH (brown). D, Expression of GH in tumorous cells. E &F, Electron microscopy examination of tumor tissue. Numerous round electron dense granules about 100-200 nm in size are seen in the cytosol. Bar = 0.5 μm.

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