Abstract
A 36-year-old woman with a tumor in the right lobe of the liver was referred to our hospital because of right flank discomfort. Abdominal computed tomography revealed a 7-cm mass located in segments 6, 7, and 8. After being explained the possibility of malignancy and the risk of rupture, the patient expressed the desire to undergo hepatectomy. Using a three-dimensional (3D) virtual hepatectomy program based on hepatic circulation, lapascopy-assisted resection of the right lateral sector and dorsal part of the right paramedian sector was performed. The histological diagnosis was focal nodular hyperplasia with proliferating bile ductules in fibrous septa. The patient recovered uneventfully and was discharged on the 16th postoperative day, and is currently alive and well, 20 months after the operation. Despite increasing experience with laparoscopic liver surgery, there have been only 13 English-Language reports of hepatectomy using the minimally invasive laparoscopic approach for lesions located in the upper right segments of the liver. Lararoscopy-assisted liver resection may also be applicable to cranially located hepatic tumors, based on our experience using 3D virtual hepatectomy for preoperative planning.