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Hepatocellular Carcinoma

Hepatocellular carcinoma (HCC) is the 6th most common malignancy in the world and the most common primary liver tumor. Approximately 866,000 patients are diagnosed with the disease each year worldwide1.
 

In Pakistan, liver cancer is the eighth most common cancer and is responsible for approximately 5% of all cancer-related deaths2.

LIVER CANCER - Basic facts3
  • The development of liver cancer occurs most often in patients with chronic liver disease, especially cirrhosis of various origins: excessive alcohol consumption, chronic hepatitis B and hepatitis C,
  • Occurs more often in men than in women,
  • Most often at the age of 50 and above.
Symptoms of liver cancer3
  • Abdominal pain in the right lower quadrant
  • Bruising and bleeding
  • Enlarged abdomen
  • Unexplained weight loss
  • Jaundice
  • Dark urine and light stools
Risk factors for liver cirrhosis3
  • Liver cirrhosis is scarring of liver tissue that is often caused by alcoholism, viral hepatitis, or nonalcoholic fatty liver disease (NAFLD).
  • Excessive alcohol consumption – Long-term excessive alcohol drinking damages the liver and can lead to cirrhosis.
  • Chronic viral liver infections – Hepatitis B (HBV) and hepatitis C (HCV) significantly increase the risk of developing hepatocellular carcinoma (HCC).
  • Nonalcoholic fatty liver disease (NAFLD) – Often associated with obesity, type 2 diabetes, and metabolic syndrome.
  • Metabolic syndrome - a group of health problems that occur together and increase the risk of diabetes, heart disease, and liver cancer. It is often caused by an unhealthy lifestyle - poor diet, lack of exercise, and genetic factors.
Liver cancer risk factors3
  • Liver cirrhosis is scarring of liver tissue that is often caused by alcoholism, viral hepatitis, or nonalcoholic fatty liver disease (NAFLD).
  • Type 2 diabetes – Increases the risk of liver cancer, especially in people with NAFLD.
  • Obesity – It is associated with chronic inflammation and fatty liver disease, which increases the risk of HCC.
  • Genetic and hereditary disorders – For example, hemochromatosis (excessive iron storage in the body).
  • Hepatic steatosis5 - hepatic steatosis or fatty liver is a metabolic disorder in which there is excessive fat deposition in liver cells. Their accumulation then causes a significant enlargement of the liver. This disease most often occurs for two reasons, namely excessive alcohol consumption and long-term elevated blood cholesterol levels. Treatment of hepatic steatosis consists primarily of abstinence and dietary modification.
Early detection of patients with HCC4

Early detection or secondary prevention of hepatocellular carcinoma may consist of preventive abdominal ultrasound examination, which can detect not only incipient changes in the liver, but also other changes in the abdominal cavity. Currently, screening is intended for patients who are already under the care of a specialist for chronic liver disease. Patients with asymptomatic HCC diagnosed during screening survive a 5-year period in more than 50% of cases thanks to radical treatment.

Liver examination3

Hepatocellular carcinoma can be detected using examination and imaging methods:

 

  • Ultrasound sonographic examination of the liver
  • Elastography
  • CT scan of the abdomen
  • Magnetic resonance imaging
  • Laboratory examination
  • Angiographic examination of the liver
  • Liver biopsy
  • Laparoscopy
Prevention3
  • Hepatitis B vaccination – effective protection against HBV.
  • Safe behavior – use of sterile needles (when tattooing, piercing), safe sex (condoms), blood testing.
  • Limit alcohol – excessive alcohol consumption leads to cirrhosis, which increases the risk of cancer.
  • Diabetes treatment – uncontrolled type 2 diabetes increases the risk of liver disease.
  • Lowering cholesterol and triglycerides – high levels can contribute to liver damage.
  • Regular medical check-ups - liver screening for people at risk - if you have hepatitis, cirrhosis or metabolic syndrome, your doctor may recommend regular non-invasive methods to monitor your liver condition (ultrasound and blood tests)
  • Healthy diet – eating fruits, vegetables, whole grains, healthy fats, and limiting processed foods.
  • Maintaining a healthy weight – obesity is linked to non-alcoholic fatty liver disease (NAFLD), which can lead to fibrosis and cirrhosis.
  • Regular physical activity – helps reduce the risk of obesity, diabetes and fatty liver disease.
Treatment3,6

Treatment of liver cancer must be tailored to each patient individually. In general, the treatment chosen depends on the size and location of the tumor, the stage of the disease, the patient's general condition and associated diseases, the functional state of the liver (i.e. the degree of involvement of the liver tissue by the tumor, the extent and condition of the healthy part of the liver, and possibly the presence of liver cirrhosis), etc.
 

Liver cancer can be treated with surgical treatment (surgical removal of the tumor, liver resection or liver transplantation), so-called locoregional treatment (radiofrequency ablation, trans arterial chemoembolization) or systemic treatment (targeted therapy or immunotherapy).

Surgical treatment is not suitable for all patients. The operability of the tumor depends on its size, location and other factors, such as the functional status of the liver. In the case of transplantation, the patient must meet strict criteria.

Chemoembolization - is used primarily to treat liver tumors or liver metastases. It is a method during which a substance is injected into the vascular bed of the tumor using a special catheter inserted through the groin, preventing further blood supply (and thus nutrition) to the tumor site. Lack of oxygen and nutrients leads to the death of cells and the entire malignant tissue with its subsequent encapsulation. This effect is enhanced by the simultaneous administration of cytostatic to the tumor (hence chemoembolization). The entire process is controlled using an X-ray machine, the procedure is performed with a short-term hospitalization.

Radiofrequency ablation - (RFA) is a method based on the thermal effects of high-frequency electric current on tissues. This method is suitable for tumors up to 5 cm. During RFA, a probe is inserted into the tumor. The tumor itself is destroyed by heat (80-100°C), which is generated by the vibration of electrons inside the tissue. The procedure is performed under general anesthesia, lasts about 15 minutes and is not accompanied by significant side effects.

Immunotherapy - is a rapidly developing method of treating malignant tumors. So-called checkpoint inhibitors, monoclonal antibodies that restore anti-tumor immunity through various mechanisms, are among the most widely used treatments in the field of immunotherapy. Immunotherapy does not directly eliminate tumor cells, but restores the ability of the body's own immune system to correctly recognize these cells and, with the help of cells of the body's own immune system, destroy tumor cells. This type of treatment is not used to treat all types of tumors.

Targeted therapy (so-called kinase inhibitors)
 - blocks certain regulatory enzymes that help cells in the human body control important functions such as cell signaling, metabolism, division, and survival.

Supportive treatment 
- its goal is to manage side effects and maintain quality of life during demanding treatment.

 

1. Worldwide cancer data. American institute for cancer research. Available at: https://gco.iarc.fr/today/en/dataviz/bars?mode=cancer&group_populations=1&cancers=11&populations=900&key=total&sexes=0 (check link 4/2025)
2. Globocan Pakistan 2022
3. About liver tumors. Linkos.cz. Available at: https://www.linkos.cz/pacient-a-rodina/onkologicke-diagnozy/nadory-jater-a-zlucniku-c22-24/o-nadorech-jater/ (check link 4/2025)
4. Working Group "HCC 2011". Recommended practice for the treatment and diagnosis of hepatocellular carcinoma. Guidelines: Recommended practices of the Czech Hepatological Society. Available at: https://www.ces-hep.cz/guidelines (check link 4/2025)
5. Hepatic steatosis - causes, symptoms, diagnosis and treatment. Medlicker.com. Available at: https://cs.medlicker.com/71-steatoza-jater-priciny-projevy-diagnostika-a-lecba (check link 4/2025) 
6. Blue Book 2025

 

M-PK-00002523

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