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

Authors

  • Tom Rand Geisbush
  • Zaneta Dymon
  • Medhat Sam Gabriel
  • Vivek Yedavalli

DOI:

https://doi.org/10.3941/jrcr.v13i4.3497

Keywords:

Neoplasm Metastasis, Thyroid Gland, Hypervascular Mass, Carcinoma, Renal Cell, Ultrasonography, Positron Emission Tomography Computed Tomography, Computed Tomography

Abstract

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.

Author Biographies

Tom Rand Geisbush

Medical Student

Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, USA

Zaneta Dymon

Radiology Resident

Department of Radiology, Loyola University Medical Center, Illinois, USA

Medhat Sam Gabriel

Radiology Staff

Department of Radiology, Loyola University Medical Center, Illinois, USA

Vivek Yedavalli

Neuroradiology Fellow

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

Published

2019-04-08

Issue

Section

General Radiology