Metastatic renal cell carcinoma to the thyroid with cervicothoracic venous tumor thrombosis

• Published in: Head & neck Vol. 45; no. 7; pp. E31 - E35
• Main Authors: Hellums, Ryan N., Kovatch, Kevin J., Friscia, Michael E., Schwartz, Tyler R., Pellitteri, Phillip K.
• Format: Journal Article
• Language: English
• Published: Hoboken, USA John Wiley & Sons, Inc 01-07-2023; Wiley Subscription Services, Inc
• Subjects: Jugular vein; Kidney cancer; Malignancy; Mediastinum; Metastases; Renal cell carcinoma; surgical oncology; Thrombosis; Thyroid; Thyroid carcinoma; Thyroidectomy; tumor thrombus; Tumors; venotomy; venotomy; renal cell carcinoma; thyroid; tumor thrombus; surgical oncology
• ISSN: 1043-3074; 1097-0347
• DOI: 10.1002/hed.27391

Introduction
Metastatic renal cell carcinoma (RCC) represents 25%–42% of metastatic thyroid malignancies. Propensity for RCC to demonstrate intravascular extension to the inferior vena cava is well documented. We present an analogous phenomenon of intravascular extension to the internal jugular vein (IJV) from thyroid gland metastasis.
Methods
A 69‐year‐old male presented with metastatic RCC of the right thyroid lobe. Imaging demonstrated tumor thrombosis of the ipsilateral IJV, extending inferiorly to the junction of the brachiocephalic, subclavian, and internal jugular veins within the mediastinum.
Results
Surgical excision required control of both the IJV in the neck and mediastinal venous great vessels via sternotomy, prior to subtotal thyroidectomy and venotomy for en bloc resection.
Conclusion
This case report describes metastatic RCC to the thyroid gland with cervicothoracic venous tumor thrombosis successfully treated with subtotal thyroidectomy, sternotomy for venotomy and tumor thrombectomy, and preservation of IJV conduit.