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Updated: Jun 21, 2026

Laparoscopic Anatomical Liver Segment VII Resection with Liver Parenchymal Transection Following a Priority Approach
Published on: May 23, 2025
Long-term outcome of laparoscopic deroofing for symptomatic nonparasitic liver cysts
Kenji Mimatsu1, Takatsugu Oida, Atsushi Kawasaki
1Department of Surgery, Social Insurance Yokohama Central Hospital, Japan. mimatsukenji@yokochu.jp
Background/Aims:
The use of the laparoscopic procedure for managing symptomatic nonparasitic liver cysts has been documented to be feasible and safe in the short term; however, the long-term outcomes of the procedure have not been well demonstrated. This study was initiated to review the long-term outcomes of this procedure.
Methodology:
Preoperatively, diagnosis was established by ultrasonography (US), computed tomography (CT) scan, and endoscopic retrograde cholangiography or magnetic resonance cholangiographic photograph. The long-term outcomes in 8 patients with symptomatic nonparasitic simple liver cysts treated by laparoscopic deroofing are presented. All patients were followed up, and morphologic evaluation was performed with repeated abdominal US and CT.
Results:
All operations could be finished laparoscopically without converting to open laparotomy. Intra- and postoperative complications were not detected. The mean follow-up duration in all cases was 122.5 months (range: 79-149 months). Two patients exhibited morphologic recurrence within 6 months after surgery and required a second treatment.
Conclusions:
From the observation of long-term follow-up, we concluded that laparoscopic deroofing is a useful method for treating symptomatic nonparasitic liver cysts.