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Case Reports in Surgery
Volume 2017, Article ID 6581965, 4 pages
Case Report

Colorectal Cancer Metastasis to the Thymus Gland: Rare Presentation of Colorectal Cancer as Anterior Mediastinal Mass

1Department of Surgery, University of Florida College of Medicine, Gainesville, FL, USA
2Department of Pathology, Immunology, and Experimental Pathology, University of Florida College of Medicine, Gainesville, FL, USA

Correspondence should be addressed to Sanda A. Tan; ude.lfu.yregrus@nat.adnas

Received 30 July 2016; Revised 2 December 2016; Accepted 6 December 2016; Published 2 January 2017

Academic Editor: Shin-ichi Kosugi

Copyright © 2017 H. Charles Peters 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.


Despite improved screening modalities, 15–25% of newly diagnosed colorectal cancers are metastatic at the time of diagnosis. The vast majority of these cases present as hepatic metastasis; however, 22% present with concomitant extrahepatic disease. The thymus gland is an uncommon site of metastasis for any primary malignancy, particularly, colorectal cancer given its vascular and lymphatic drainage. This case report details our experience with a rare case of colorectal cancer metastasis to the thymus gland presenting as a symptomatic mediastinal mass.