A Multimodal and Pathological Analysis of a Renal Cell Carcinoma Metastasis to the Thyroid Gland 11 Years Post Nephrectomy.

Authors:
Vivek Yedavalli
Vivek Yedavalli
Stanford University
Neuroradiology Fellow
Neuroradiology
Palo Alto, California | United States

J Radiol Case Rep 2019 Apr 30;13(4):1-9. Epub 2019 Apr 30.

Department of Neuroimaging and Neurointervention, Stanford Hospital, Palo Alto, USA.

Thyroid lesions have a comprehensive differential diagnosis which include benign and malignant entities, such as metastases. However, metastases only account for a small percentage of thyroid lesions with renal cell carcinoma as the most common. Metastases to the thyroid pose a diagnostic dilemma as symptoms may not manifest for up to decades after removal of the renal cell carcinoma. Due to the nonspecific appearance on computed tomography and ultrasound, distinguishing metastases from primary thyroid malignancies is of the utmost importance for timely patient management. Our case demonstrates the importance of considering RCC metastases to the thyroid even years after nephrectomy to mitigate potential delays in diagnosis. We present the case of a 66-year-old male with a past medical history of renal cell carcinoma status post nephrectomy 11 years prior who demonstrated incidental thyroid abnormalities on positron emission tomography/computed tomography and ultrasound later confirmed as a metastasis of renal cell carcinoma.

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Source
http://dx.doi.org/10.3941/jrcr.v13i4.3497DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6743643PMC
April 2019
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