Background: Large liver cysts causing compression or rupture require surgical intervention, with laparoscopic wide deroofing being the current standard method.
Case report: A 52-year-old female was admitted with a 2-day history of epigastric pain, without fever or jaundice, and a 3-year history of monitored liver cysts. MRI revealed two large cysts (segment IV 10 cm; segment VIII 12 cm, both with thin walls and no septations) and three small cysts. Serological tests for parasites and tumor markers were within normal limits.
Intervention and clinical course: The patient underwent laparoscopic deroofing of both liver cysts. Intraoperative findings showed a ruptured segment IV cyst and a tense segment VIII cyst. Laparoscopic wide deroofing was performed using an ultrasonic scalpel, combined with omentopexy into the right cyst cavity to obliterate dead space and optimize secretion drainage. The operative time was 50 minutes with no blood loss. The postoperative course was stable, with discharge on day 5 and benign histopathology. Follow-up at 1, 3, and 6 months showed no fluid recurrence on ultrasound.
Conclusion: Laparoscopic deroofing using an ultrasonic scalpel combined with omentopexy is a safe and effective method for large liver cysts complicated by rupture, helping to obliterate dead space and minimize postoperative fluid collection.