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Case Reports in Gastrointestinal Medicine
Volume 2017 (2017), Article ID 6725297, 4 pages
Case Report

Metastatic Renal Cell Cancer to Thyroid Diagnosed by Endoscopic Ultrasound Guided Fine Needle Aspiration Technique

1Department of Internal Medicine, Division of Gastroenterology, University of Toledo Medical Center, Toledo, OH, USA
2Department of Pathology, University of Toledo Medical Center, Toledo, OH, USA

Correspondence should be addressed to Yousef Abdel-Aziz

Received 10 June 2017; Revised 21 September 2017; Accepted 26 September 2017; Published 23 October 2017

Academic Editor: Jiro Watari

Copyright © 2017 Yousef Abdel-Aziz et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Medical literature about the role of endoscopic ultrasound (EUS) in identifying thyroid lesions is limited. We present a case of secondary thyroid cancer from renal cell carcinoma (RCC) metastasis, diagnosed by thyroid EUS-fine needle aspiration (FNA) approach that was done for staging of esophageal adenocarcinoma, in a patient with 11-year history of complete right nephrectomy for RCC. An 81-year-old female patient underwent EUS for the evaluation of a newly discovered distal esophageal cancer. A hypoechoic, round, and well-demarcated mass that measured 26.9 mm × 21.9 mm was noticed in the right lobe thyroid gland. Therefore FNA was performed. The cytological results were consistent with metastatic RCC. In conclusion, EUS-FNA of thyroid nodule is a feasible and safe technique that can be used to evaluate any suspicious thyroid nodule. This case emphasizes the importance of carefully examining the thyroid gland during routine upper esophageal EUS examinations in the presence of history of nonthyroidal cancer.