Metastases of Renal Cell Carcinoma to the Thyroid Gland with Synchronous Benign and Malignant Follicular Cell-Derived Neoplasms

<table>Tumor-in-tumor. (a and d) Two foci of metastatic renal cell carcinoma presented as central lesions inside hyperplastic adenomatoid nodules (hematoxylin and eosin). Tumor cells of renal cell carcinoma were negative for thyroglobulin (b) but positive for CD10 (c), EGFR (e), and VEGFR2 (f).</table>

Case Reports in Oncological Medicine

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Figure 3

Figure 3: Metastases of Renal Cell Carcinoma to the Thyroid Gland with Synchronous Benign and Malignant Follicular Cell-Derived Neoplasms 