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

Figure 1 Initial radiological appearance of the kidney tumor and the thyroid left lobe mass. A: Preoperative contrast-enhanced computed tomography (CT) scan image of the left kidney tumor. The image shows a 6.0 cm × 5.0 cm exophytic mass in the lower pole of the left kidney (arrowheads). No lymphadenopathy was identified; B: Contrast-enhanced CT scan revealed a 4.0 cm × 2.5 cm solid mass with a smooth surface in the left lobe of the thyroid gland (arrowheads); C: The ultrasound imaging shows a 3.2 cm × 2.8 cm × 3.3 cm hypoechoic mass lesion without calcification in the left lobe of the thyroid.