Related Experiment Video For 3D simulation imaging
Updated: Feb 12, 2026
Laparoscopic Anatomical Liver Segment VII Resection with Liver Parenchymal Transection Following a Priority Approach
Published on: May 23, 2025
The potentiality of laparoscopic partial liver excisional biopsy using analysis of the liver surface based on
Shigenori Ei1, Osamu Itano2, Hideo Yoshida3
1Department of Surgery, Eiju General Hospital, 2-23-16 Higashiueno, Taito, Tokyo 110-8645, Japan; Department of Surgery, Kitasato University, 1-15-1 Kitasato, Minami, Sagamihara, Kanagawa 252-0375, Japan.
Introduction:
The imaging diagnostics of liver tumor are difficult. There are no effective biopsy examinations for liver tumors that cannot be detected even by ultrasonography (US) and computed tomography (CT). We report a remarkably useful biopsy method for such tumors.
Presentation Of Case:
A 67-year-old man with hepatitis C underwent gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid-enhanced magnetic resonance imaging, and the images revealed multiple delayed enhanced masses that showed high signal intensity in the hepatobiliary phase. The possibility of malignancy could not be ruled out due to the trend towards increased size of the masses. Percutaneous liver biopsy was considered impossible because CT and US could not detect the masses. Laparoscopic liver biopsy with preoperative simulation using 3D imaging was performed. The 3D imaging provided accurate information of liver surface irregularities with cirrhosis change. The tumor location was confirmed, and adequate tumor excisional biopsy was performed. Histological assessment revealed the tumor to be a focal nodular hyperplasia-like nodule.
Discussion And Conclusions:
Laparoscopic liver biopsy has been widely used because of its safety and accuracy. It enables accurate resection of tumors that are undetectable with CT and US by employing preoperative 3D imaging while maintaining the less-invasiveness.
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