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Case Reports in Medicine
Volume 2013 (2013), Article ID 235698, 5 pages
http://dx.doi.org/10.1155/2013/235698
Case Report

Surgical Resection of a Leiomyosarcoma of the Inferior Vena Cava Mimicking Hepatic Tumor

1Department of Gastrointestinal Hepatobiliary-Pancreatic Surgery, Nippon Medical School, Tokyo 113-8603, Japan
2Department of Surgery for Organ Function and Biological Regulation, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan

Received 8 October 2012; Accepted 20 January 2013

Academic Editor: John A. Elefteriades

Copyright © 2013 Junji Ueda 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

Introduction. Leiomyosarcomas of vascular origin are particularly rare tumors occurring mainly in the inferior vena cava (IVC). They are malignant, slow-growing tumors with a poor prognosis. This paper reports on a rare case of surgical resection of an IVC leiomyosarcoma mimicking a hepatic tumor. Case Presentation. A 65-year-old Japanese male was admitted for evaluation of an abdominal tumor. Enhanced computed tomography of the abdomen revealed a slightly enhanced heterogeneous tumor, 18 mm in diameter, between the Spiegel lobe of the liver and the IVC in early-phase images, with no enhancement or washout in late-phase images. We diagnosed this tumor as either a hepatic tumor in the Spiegel lobe or a retroperitoneal tumor such as leiomyosarcoma or liposarcoma and performed a laparotomy. On the basis of surgical findings, we extirpated the tumor by performing a wedge resection of the wall of the IVC and suturing the primary IVC wall. Pathological findings led to a further diagnosis of the tumor as a leiomyosarcoma originating in the IVC. Thirty-seven months after the operation, multiple liver and lung metastases were detected, and the patient died from multiple organic failures. Conclusion. We experienced a rare case of a leiomyosarcoma of IVC mimicking hepatic tumor.