Didactic surgical experience of thyroid metastasis from renal cell carcinoma: A case report

Figure 4 Histological findings of the resected thyroid specimens. A: Many markedly developed blood vessels were found at the surface of the resected thyroid [hematoxylin-eosin (HE) staining, × 20]; B: Some of these abnormal vessels showed the signs of bleeding (HE, × 20); C: The tumor was composed of atypical cells with clear or eosinophilic cytoplasm, suggesting metastasis of clear cell renal cell carcinoma (HE, × 200); D, E: Immunostaining of the thyroid tumor for CD10 (D) and vimentin (E). The tumor cells were diffusely positive for both CD10 and vimentin (× 200).