Figure 1
From: Acute airway failure secondary to thyroid metastasis from renal carcinoma
Thyroid metastases due to renal cell carcinoma. Contrast-enhanced computed tomography scan: (A, B, C) axial images and (D) volume-rendered reconstructed image; the right lobe of the thyroid gland shows a non-homogeneous and irregular mass with tracheal involvement. The mass extends into the fatty plane in proximity to the right carotid artery and is also associated with metastatic lymph nodes.