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World J Gastroenterol. Mar 21, 2010; 16(11): 1418-1421
Published online Mar 21, 2010. doi: 10.3748/wjg.v16.i11.1418
Published online Mar 21, 2010. doi: 10.3748/wjg.v16.i11.1418
A case of occult insulinoma localized by pancreatic dynamic enhanced spiral CT
Zhao-Kang Bao, Xin-Yu Huang, Qi Zheng, Xiao-Feng Wang, Hong-Cheng Wang, Department of General Surgery, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai 200233, China
Jun-Gong Zhao, Department of Radiology, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai 200233, China
Author contributions: Bao ZK and Huang XY were equally involved in this study; Bao ZK and Huang XY designed the research; Bao ZK, Wang XF and Wang HC analyzed the data; Zhao JG performed the CT scanning and supplied the images of CT; Bao ZK drafted the paper; Huang XY and Zheng Q revised the paper.
Correspondence to: Xin-Yu Huang, Professor, Department of General Surgery, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai 200233, China. huangxinyush@hotmail.com
Telephone: +86-21-64369181 Fax: +86-21-64367326
Received: December 10, 2009
Revised: January 10, 2010
Accepted: January 17, 2010
Published online: March 21, 2010
Revised: January 10, 2010
Accepted: January 17, 2010
Published online: March 21, 2010
Abstract
Insulinomas are the most common category of pancreatic endocrine tumors, with an annual incidence of 1-4 cases per million people. Most are intrapancreatic, benign and solitary. Therefore, they have an excellent prognosis after surgical resection. However, the localization diagnosis of insulinomas still poses a challenge to surgeons and radiologists. In this case, the tumor was occult and could not be found by either abdominal enhanced spiral computed tomography (CT) or ultrasonography. Therefore, we tried a new method of CT scanning and localized the tumor.
Keywords: Insulinoma; Computed tomography; Localization diagnosis; Dynamic enhanced scan; Enhancement value