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The liver is the body’s largest internal organ. It is essential in the digestion of meals. Nobody can exist without a liver. Among the liver’s functions are:
- Blood collection and filtration from the intestines
- Processing and storing nutrients taken by the intestines
- converting some nutrients into energy or chemicals required for tissue repair and growth
- Providing some of the body’s blood-clotting factors
- Toxin removal from the body
- Assisting in the maintenance of the body’s normal sugar level
WHAT ARE THE TYPES OF PRIMARY LIVER CANCER I ADULTS?
WHAT ARE THE SIGNS AND SYMPTOMS OF LIVER CANCER?
- Pain, particularly in the upper right quadrant of the abdomen, near the right shoulder blade, or in the back
- Unknown cause of weight loss
- A hard bump under the ribs on the right side of the body, which could indicate a tumor or an indication that the liver has grown in size.
- Weakness or exhaustion
- Jaundice (a yellowing of the skin or eyes).
WHAT ARE THE STAGES OF LIVER CANCER?
BCLC system of staging
- Very early stage: The tumor is less than 2 millimeters in diameter (cm). There is no increased pressure in the portal vein, which is one of the liver’s main blood veins. Bilirubin levels are normal, which is the chemical that causes jaundice. Surgery is frequently advised.
- Early stage: The tumor is less than 5 cm in diameter. The liver’s function varies. There may be no increase in portal vein pressure, an increase in portal vein pressure with normal bilirubin levels, or an increase in portal vein pressure with elevated bilirubin levels. Early-stage illness patients may be candidates for a liver transplant, surgery, or radiofrequency ablation (RFA).
- Intermediate stage: The tumor could be huge or there could be several tumors. Regional therapy, such as transarterial chemoembolization, are typically recommended by doctors.
- Advanced stage: The tumor has infiltrated the portal vein or has migrated to other regions of the body, including the lymph nodes, lungs, and bones. Targeted therapy is frequently recommended by doctors.
HOW IS LIVER CANCER DIAGNOSED?
- The cancer type suspected
- Your symptoms and signs
- Your age and general well-being
- The outcomes of previous medical test
WHAT ARE THE TREATMENTS FOR LIVER CANCER?
- What proportion of the liver is impacted by cancer?
- Whether or if the cancer has spread.
- Preferences and general health of the patient
- The damage to the liver’s remaining cancer-free area
TREATMENTS THAT TARGET THE DISEASE IN ORDER TO REMOVE AND MAYBE CURE HCC
Surgery
- Hepatectomy: A hepatectomy is a surgical procedure that removes a piece of the liver. A hepatectomy can only be performed if the malignancy is only in one area of the liver and the liver is otherwise healthy. The remaining part of the liver performs all of the liver’s activities. Within a few weeks, the liver may regain its usual size. Even if the tumor is tiny, a hepatectomy may be impossible if the patient has severe cirrhosis.
Pain, weakness, exhaustion, and transient liver failure are all possible adverse effects of a hepatectomy. The medical team will be on the lookout for signs of bleeding, infection, liver failure, or other conditions that require rapid attention.
- Liver transplantation: A liver transplant is sometimes performed. This treatment is only possible if certain conditions are met, such as having a specified tumor size and number, as well as finding a compatible donor. These criteria typically include having a single tumor that is 5 cm or smaller, or having three or fewer tumors that are all smaller than 3 cm. Because the number of accessible donor livers is extremely low, transplantation is not always a possibility.
Following a transplant, the patient will be constantly monitored for signals that the body is rejecting the new liver or that the tumor has returned. To avoid rejection, the patient must take medicine. These medications may induce negative effects such as facial puffiness, elevated blood pressure, or excessive body hair. The risks of major consequences after a liver transplant are substantial, including death from infection, the body’s rejection of the donor liver, and an increased risk of other associated malignancies.Because liver transplantation eliminates both the tumor and the damaged liver, it is a very successful treatment for those with tiny tumors. However, because there are few donors, persons in need of a liver transplant may have to wait a long period before one becomes available. The condition may worsen at this time. The transplant center will tell you how long the wait will be and what rules are in place to prioritize those on the waiting list.
Radiofrequency ablation (RFA)
Both RFA and microwave therapy employ heat to kill cancer cells. They can be administered through the skin, via laparoscopy, or during a surgical procedure while the patient is asleep. Sedation is the administration of drugs in order to become more relaxed, tranquil, or sleepy. This method of treatment is also known as thermal ablation.
Percutaneous ethanol injection
Alcohol is administered directly into the liver tumor to eliminate it via percutaneous ethanol injection. Following the surgery, patients may have fever and soreness. In general, the technique is easy, safe, and especially successful for tumors less than 3 cm in size. If the alcohol escapes from the liver, a person may experience transient but acute discomfort. This option is rarely utilized and has mainly been supplanted by RFA.
Radiation therapy
The use of high-energy x-rays or other particles to eliminate cancer cells is known as radiation therapy. A radiation therapy regimen, or schedule, typically consists of a predetermined number of treatments administered over a predetermined time period. A radiation oncologist is a doctor who specializes in the use of radiation therapy to treat cancer.
- Stereotactic body radiation therapy (SBRT): SBRT refers to a number of techniques for providing high doses of radiation therapy to a tumor while reducing the quantity of radiation delivered to neighboring healthy tissue. This is significant because radiation can harm healthy liver tissue. SBRT is successful in treating cancers that are 5 cm or smaller. However, it is still classified as investigational when compared to RFA because there is little information available about its long-term effectiveness.
SBRT side effects may include stomach and lung damage. These side effects, however, are frequently avoidable. Discuss with your health care team how to avoid and manage potential side effects.
DISEASE SPECIFIC THERAPY THAT HELP PATIENTS LIVE LONGER LIVES
Chemoembolization and radioembolization for disease confined to the liver
Systemic therapy for advanced HCC
- Some individuals with advanced HCC may be given a combination of bevacizumab (Avastin) and atezolizumab (Tecentriq).
- People who are unable to receive atezolizumab with bevacizumab may be provided targeted therapy with sorafenib (Nexavar) or lenvatinib (Lenvima).
- Sorafenib
- Lenvatinib
- Cabozantinib (Cabometyx; a targeted therapy)
- Regorafenib (Stivarga; a targeted therapy)
- Ramucirumab (Cyramza; a targeted therapy)
- Atezolizumab and bevacizumab in combination
- Pembrolizumab (Keytruda) or nivolumab (Opdivo), which are immune checkpoint inhibitors.
Targeted therapy
- Bevacizumab with atezolizumab: In 2020, the U.S. Food and Drug Administration (FDA) approved the combination of bevacizumab, an anti-angiogenesis targeted therapy, and atezolizumab, an immunotherapy drug (see “Immunotherapy” below), for people with unresectable or metastatic HCC who have not previously received cancer treatment with medications. Bevacizumab side effects include elevated blood pressure, back discomfort, headaches, and taste changes. Unlike many anti-angiogenesis medications, bevacizumab is administered intravenously.
- Lenvatinib: The FDA approved another anti-angiogenesis targeted medication, lenvatinib, in 2018. This medication is licensed as a first-line treatment for HCC that cannot be removed surgically. High blood pressure, exhaustion, diarrhea, appetite loss, joint and muscle discomfort, weight loss, abdominal pain, rash, redness, itching, or peeling of the skin on the hands and feet, hoarseness, bleeding, change in thyroid hormone levels, and nausea are the most prevalent adverse effects of this medication.
- Sorafenib: Sorafenib is used to treat advanced HCC that cannot be removed surgically. It is administered in the form of a pill that is swallowed (orally). Sorafenib’s most common side effects include diarrhea, tiredness, and certain skin disorders, among other less prevalent ones.
- Ramucirumab: Ramucirumab is another anti-angiogenesis drug that has been approved for the treatment of HCC with high levels of the tumor marker AFP in patients who have previously undergone sorafenib. Ramucirumab’s most common side effects are fatigue, stomach pain, and nausea.
- Cabozantinib: Cabozantinib was authorized by the FDA in 2019 for the treatment of HCC in persons who had previously treated sorafenib. Cabozantinib side effects include diarrhea, lethargy, decreased appetite, and nausea.
- Regorafenib: In 2017, the FDA approved the use of regorafenib, another targeted treatment, to treat persons with HCC who had previously been treated with sorafenib. Regorafenib, which likewise suppresses angiogenesis, is already being used to treat colorectal cancer and gastrointestinal stromal tumors. It is administered in the form of a pill that is swallowed (orally). Diarrhea and skin problems are among the side effects.
Immunotherapy
- Nivolumab: The FDA authorized nivolumab, an immunotherapy, for the treatment of HCC in 2017. Nivolumab can be used to treat patients who have previously had sorafenib, a kind of targeted therapy.
- Pembrolizumab: The immunotherapy pembrolizumab was licensed by the FDA in 2018 for the treatment of HCC patients. Pembrolizumab, like nivolumab, can be used to treat patients who have previously been treated with sorafenib. Pembrolizumab is an inhibitor of immunological checkpoints.
- Nivolumab in combination with ipilimumab (Yervoy): The FDA approved the use of nivolumab in combination with another immunotherapy medicine called ipilimumab (Yervoy) to treat patients with HCC who had previously been treated with sorafenib in 2020. Both nivolumab and ipilimumab are immune checkpoint inhibitors, which means they work to block the pathways that would otherwise allow cancer to hide from the immune system. Immune checkpoint inhibitors such as nivolumab and ipilimumab are both available.
- Atezolizumab in combination with bevacizumab: In 2020, the FDA approved the combination of atezolizumab, an immunotherapy drug, and bevacizumab, a targeted therapy drug, for persons with unresectable or metastatic HCC who had not previously had medication-based cancer treatment. Bevacizumab is an anti-angiogenesis treatment, and atezolizumab is an immune checkpoint inhibitor.