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Case Reports in Gastrointestinal Medicine
Volume 2017 (2017), Article ID 8765264, 6 pages
https://doi.org/10.1155/2017/8765264
Case Report

Asymptomatic Pancreatic Metastasis from Renal Cell Carcinoma Diagnosed 21 Years after Nephrectomy

1Department of Gastroenterology, Komatsu Municipal Hospital, Ishikawa, Japan
2Department of Gastroenterology, Saitama Cancer Center, Saitama, Japan
3Department of Pathology, Komatsu Municipal Hospital, Ishikawa, Japan

Correspondence should be addressed to Naoki Takahashi; moc.liamg@32600891ikoan

Received 15 June 2017; Revised 29 July 2017; Accepted 2 August 2017; Published 30 August 2017

Academic Editor: Hideto Kawaratani

Copyright © 2017 Megumi Zianne 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.

Abstract

This report presents our experience with a case of pancreatic metastasis of renal cell carcinoma (RCC) at a long-term follow-up after nephrectomy. A 73-year-old man underwent nephrectomy for right RCC 21 years ago; computed tomography (CT) scanning on routine follow-up revealed a solid mass in the tail of the pancreas, and magnetic resonance imaging (MRI) showed some tumors in the head and tail of the pancreas. The patient was asymptomatic and allergic to contrast medium. Therefore we could not perform contrast CT/MRI for further examination to diagnose pancreatic tumors. We undertook endoscopic ultrasonography (EUS) and detected a hypervascular and low echoic mass; tumor tissues were obtained by EUS-guided fine-needle aspiration (EUS-FNA). Pathological diagnosis revealed pancreatic metastasis of clear cell RCC; this was similar to the pathological findings of tumor tissues initially obtained by nephrectomy. EUS-FNA was extremely useful for the definitive diagnosis of a rare type of pancreatic tumor.