Case Report
Copyright ©2009 The WJG Press and Baishideng. All rights reserved.
World J Gastroenterol. Aug 7, 2009; 15(29): 3704-3707
Published online Aug 7, 2009. doi: 10.3748/wjg.15.3704
Primary gastrointestinal stromal tumor of the liver: A case report
Xiao-Li Luo, Dan Liu, Jian-Jun Yang, Min-Wen Zheng, Jing Zhang, Xiao-Dong Zhou
Xiao-Li Luo, Department of Ultrasonography, Fuzhou General Hospital, No. 156 Xi’erhuan North Road, Fuzhou 350025, Fujian Province, China
Dan Liu, Xiao-Dong Zhou, Department of Ultrasonography, Xijing Hospital, Fourth Military Medical University, No. 17 West Changle Road, Xi’an 710032, Shaanxi Province, China
Jian-Jun Yang, Department of Gastrointestinal Surgery, Xijing Hospital, Fourth Military Medical University, No. 17 West Changle Road, Xi’an 710032, Shaanxi Province, China
Min-Wen Zheng, Department of Radiology, Xijing Hospital, Fourth Military Medical University, No. 17 West Changle Road, Xi’an 710032, Shaanxi Province, China
Jing Zhang, Department of Pathology and Pathophysiology, Fourth Military Medical University, No. 17 West Changle Road, Xi’an 710032, Shaanxi Province, China
Author contributions: Luo XL and Liu D contributed equally to the manuscript; Yang JJ, Zhen MW and Zhang J performed the research and collected data; Zhou XD revised the paper.
Correspondence to: Xiao-Dong Zhou, MD, PhD, Department of Ultrasonography, Xijing Hospital, Fourth Military Medical University, No. 17 West Changle Road, Xi’an 710032, Shaanxi Province, China. zhouxiaodong6@gmail.com
Telephone: +86-29-84775443
Fax: +86-29-83244121
Received: March 23, 2009
Revised: June 13, 2009
Accepted: June 20, 2009
Published online: August 7, 2009
Abstract

We report a case of primary gastrointestinal stromal tumor (GIST) of the liver. A 17-year-old man with a solid mass in the anterior segment of the right liver was asymptomatic with negative laboratory examinations with the exception of positive HBV. Contrast-enhanced ultrasound (CEUS) revealed a hypervascular lesion in the arterial phase and hypoechoic features during the portal and late phases. However, enhanced spiral computed tomography (CT) showed hypoattenuation in all three phases. Following biopsy, immunohistochemical evaluation demonstrated positive CD117. Different imaging features of primary GISTs of the liver are due to pathological properties and different working systems between CEUS and enhanced spiral CT.

Keywords: Contrast-enhanced ultrasound; Enhanced spiral computed tomography; Gastrointestinal stromal tumor; Liver