Suitability of Robotic-Assisted Surgery for Hepatic Peribiliary Cysts: A Case Report

Although hepatic peribiliary cysts are generally benign, surgery may be required if the cysts are growing or causing bile duct stenosis. However, few studies have reported the use of robotic surgery for removing hepatic peribiliary cysts. This case report describes a woman in her 50s with a cystic lesion in liver segment III that increased from 33 to 45 mm in 2 years. The patient was asymptomatic; however, robotic subsegmentectomy of segment III was performed owing to concerns about potential malignancy. The cyst was lined by a single layer of cylindrical epithelium without cytological atypia and was pathologically diagnosed as a hepatic peribiliary cyst. Hepatic peribiliary cysts can be monitored if the cyst is diagnosed correctly and the patient has no symptoms. However, surgery is warranted if malignancy cannot be ruled out or the patient is symptomatic. Minimally invasive robotic surgery may be a good option for hepatic peribiliary cysts.