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Effective use of a vessel‐sealing system for laparoscopic unroofing of liver cysts

Liver cysts that present with symptoms such as jaundice, abdominal pain, and intra‐cystic infection require treatment. In laparoscopic unroofing of liver cysts, appropriate treatment is needed in cases where the cystic walls contain vessels or bile ducts. A vessel‐sealing system can seal not only vessels, but also bile ducts. We experienced four cases in which laparoscopic unroofing of liver cysts was performed with a vessel‐sealing system.