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Updated: Jun 16, 2026

Application of the En Bloc Concept Combined with Anatomic Resection in Laparoscopic Hepatectomy
Published on: March 10, 2023
[Laparoscopic treatment of liver cysts]
Orlando Jorge Martins Torres1, Aline Maria Santos Farias, Maria Helena Almeida Costa
1Departamento de Cirurgia, Universidade Federal do Maranhão, São Luis, MA, BR. o.torres@uol.com.br
Objective:
The authors present their experience with the laparoscopic management of non-parasitic liver cysts.
Methods:
During the period from May 2003 to August 2006, thirteen patients with non-parasitic liver cysts underwent laparoscopic fenestration. Eleven patients were female (84.6%) and two (15.4%) were male. The average age at diagnosis was 48.3 years (range 35-72). The majority of patients presented with pain, discomfort, dyspepsia, or early satiety at diagnosis. Computed tomography scans were performed in all cases. The cysts were solitary in eleven patients (84.6%) and polycystic liver disease in two patients (15.4%). The average size of the solitary cysts was 11.3 cm (range 9.5-17 cm), and the polycystic liver disease was 10.6 cm (range 9.2-12.1 cm). Operation was indicated due to symptoms in all patients. The technique performed was laparoscopic cyst fenestration.
Results:
Laparoscopic fenestration was completed in all patients. Mean operative time was 85 minutes (range 53-110). Intraoperative complications were not detected and there was no death. Postoperative complications were observed in two patients (15.4%). Bile leakage was present in one patient, and ascites in another patient. Both cases were treated conservatively. The average hospital stay was 3.5 days (range 2-9 days). Mean follow-up was 36 months. There was one asymptomatic recurrence (7.6%) in a patient with polycystic liver disease after two years of follow-up.
Conclusion:
Laparoscopic fenestration is the preferred method of treatment for non-parasitic liver cyst. This operation causes low morbidity and the recurrence is uncommon. Adequate selection of patients and the laparoscopic technique are important for the treatment.

