Fig. 2From: Retroperitoneal laparoscopic hepatectomy of recurrent hepatocellular carcinoma: case report and literature reviewThe extent of hepatectomy was determined by ICG fluorescence navigation and IOUS. Under fluorescence laparoscopy, the tumour emitted green fluorescence. The liver parenchyma was severed precisely based on fluorescent labelling and guidance by IOUS to prevent the operating plane from deviating from the liver parenchyma and to ensure that the incision margins were free of tumoursBack to article page