operations on liver and gallbladder and hepatobiliary zone

liver operation scalpel gallbladder hepatobiliary zone surgeon holding simulating surgical hepatectomy resection abdominal cavity alcoholism anatomical anatomy background bile bladder body cancer care cirrhosis cyst cystic digestive disease fatty gall gastrointestinal tract health hepatic hepatitis human inflammation medical medicine metastases organ pain pathology portal realistic research surgery system transplantation treatment operations zone