Liver cancer surgery aims to physically excise cancerous tissue from the liver while preserving sufficient functional liver tissue to sustain life. In partial hepatectomy, surgeons resect the tumour along with a surrounding rim of healthy tissue, relying on the liver's unique ability to regenerate its own mass. In cases where the background liver is severely damaged by cirrhosis (advanced scarring) or tumours are multifocal within predefined criteria, a complete liver replacement via transplantation is undertaken. These operations are conducted within the specialized field of hepato-pancreato-biliary (HPB) surgical oncology.

Liver cancer surgery begins with the administration of general anaesthesia and placement of specialized hemodynamic monitoring lines. The surgical team establishes access through either a traditional open abdominal incision or small laparoscopic/robotic ports. The surgeon thoroughly inspects the abdominal cavity and performs intraoperative ultrasound to confirm tumour size, location, and proximity to major blood vessels. To control blood loss during liver division, the surgeon may apply temporary vascular occlusion, known as the Pringle manoeuvre. The liver tissue is then split along anatomical planes using ultrasonic dissectors or advanced thermal devices. Blood vessels and bile ducts feeding the targeted segment are securely clipped, stapled, or sutured. After removing the tumour specimen, the surgical surface is checked for bleeding and bile leaks. Surgical drains may be placed before closing the incision in layers.

Liver cancer surgery offers the highest likelihood of long-term cure and extended overall survival compared to non-surgical treatment options. Surgical resection physically removes the entire primary tumour along with micro-metastases in the immediate surrounding tissue, achieving complete pathological clearance (an R0 resection margin). For patients with underlying liver dysfunction, liver transplantation not only eliminates the tumour but also replaces the diseased, cirrhotic organ, effectively addressing both the cancer and the risk of liver failure.

Recovery from liver cancer surgery occurs in distinct clinical phases. During the initial hospital stay of five to ten days, care focuses on pain management, monitoring liver function through daily blood tests, preventing fluid buildup in the abdomen, and encouraging early walking. Over the subsequent two to six weeks at home, patients gradually regain energy, rebuild muscle strength, and transition back to light daily activities. Full physical recovery and substantial tissue regeneration typically require two to three months. Structured clinical surveillance, including high-resolution cross-sectional imaging and tumour biomarker testing, is maintained every three to six months post-operatively.

Liver cancer surgery treats primary malignant tumours originating in liver tissue, including hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (bile duct cancer). It is also widely used for secondary (metastatic) malignancies that have spread to the liver from other body sites, most commonly colorectal liver metastases (CRLM) and neuroendocrine tumours. Additionally, surgery addresses benign liver lesions that cause severe symptoms, carry a high risk of spontaneous rupture, or cannot be reliably distinguished from malignant growths, such as large hepatic adenomas.

Pre-procedure preparation involves a comprehensive medical evaluation to ensure surgical safety. Patients undergo high-resolution multi-phase CT or MRI scans to map liver anatomy and calculate the precise future liver remnant volume. Cardiopulmonary fitness is evaluated using stress testing and echocardiography. Liver function is assessed using blood tests, Child-Pugh classification, and MELD scores. If the remaining liver volume is too small, portal vein embolization may be performed four to six weeks before surgery to stimulate pre-operative growth of the healthy liver portion. Patients are advised to stop smoking and alcohol consumption, optimize nutritional intake, and pause specific blood-thinning medications under physician direction prior to admission.

Complications following liver cancer surgery are categorized by severity. Minor and moderate risks include localized wound infection, temporary abdominal fluid accumulation (ascites), pleural effusion around the lungs, low blood red cell counts requiring transfusion, and transient liver enzyme elevation. Severe complications include post-hepatectomy liver failure, major intraoperative or delayed postoperative hemorrhage, deep bile leaks requiring endoscopic or radiological drainage, systemic infection (sepsis), deep vein thrombosis, pulmonary embolism, and perioperative death. In transplantation cases, additional risks include organ rejection, vascular thrombosis of the graft, and long-term immunosuppression side effects.

The clinical path for liver cancer surgery starts with a thorough multidisciplinary team review involving diagnostic scans, blood tests, and liver function scoring. Once surgical eligibility is confirmed, patients undergo pre-operative clearance and physical preparation over two to four weeks. On the day of surgery, general anaesthesia is administered for an open or minimally invasive procedure lasting three to seven hours. Following surgery, patients spend one to two days in an intensive care unit, followed by five to seven days on a specialized ward. Full physical recovery and tissue regeneration occur over six to twelve weeks, accompanied by structured ongoing imaging surveillance every three to six months.