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International Journal of Hepatology
Volume 2013, Article ID 981975, 6 pages
Review Article

Giant Hepatic Cyst with Septal Structure: Diagnosis and Management

1Department of Gastroenterology, Kashiwazaki General Hospital and Medical Center, 2-11-3 Kitahanda, Kashiwazaki, Niigata 9458535, Japan
2Department of Surgery, Niigata Cancer Center Hospital, Japan
3Department of Pathology, Niigata Cancer Center Hospital, Japan

Received 12 April 2013; Accepted 6 May 2013

Academic Editor: Kenya Kamimura

Copyright © 2013 Toshihiro Sato 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.


The hepatic cyst is a common benign liver tumor, and no surgical treatment is necessary. However, it is difficult to correctly diagnose the giant hepatic cyst containing the solid septal structures inside, from the malignant cystadenocarcinomas. The various imaging modalities such as computed tomography, magnetic resonance imaging, and ultrasonography, have been developed and are useful for the diagnosis of these liver tumors. Reviewing the other reports in this paper, the combination of more than 2 modalities will help to diagnose these tumors; however, the malignant potential is unable to be excluded if the tumor is huge. Therefore, the surgical resection should be considered for the huge hepatic cysts with septal structures if the correct diagnosis is unable to be made. For example, when the hemorrhages cause the granulation in the septa which often shows neovascularization, the imaging modalities are unable to define this situation from the malignant tissue with hypervascularity. Therefore, with the careful review of other reports, we conclude that if the imaging studies show the possible malignant potential or the sizing-up is marked, the surgical treatment should be considered with the consent from the patients.