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Hepatobiliary Cancers

A class of cancers known as hepatobiliary cancers affects the liver, gallbladder, and bile ducts—organs essential to metabolism and digestion. These cancers are frequently aggressive and might not show any symptoms until they have progressed to a more advanced stage. However, prompt intervention can have a major impact on outcomes and quality of life thanks to advancements in diagnostic methods and treatment options.

What Causes Head and Neck Cancer?

This group includes:

  • Hepatocellular carcinoma (HCC): The most prevalent kind of primary liver cancer, which usually develops in patients who already have cirrhosis or liver disease.
  • Cholangiocarcinoma (Bile duct cancer): An uncommon but dangerous type of cancer that develops in the bile ducts, either extrahepatically or intrahepatically.
  • Gallbladder cancer: A rather uncommon cancer that is frequently found by chance when gallstone surgery is performed.
  • Combined hepatocellular-cholangiocarcinoma (cHCC-CCA): A rare kind that combines characteristics of bile duct and liver cancer.

Because of their close anatomical and functional ties, these cancers are collectively referred to as hepatobiliary malignancies.

Causes and Risk Factors

Numerous chronic illnesses and environmental exposures have an impact on hepatobiliary cancers. Among the main risk factors are:

  • Chronic viral hepatitis (Hepatitis B or C): A major contributor to hepatocellular carcinoma, particularly in sub-Saharan Africa and Asia.
  • Cirrhosis: Caused by chronic liver infections, non-alcoholic fatty liver disease (NAFLD), or alcohol misuse.
  • Primary sclerosing cholangitis (PSC): A condition that raises the risk of bile duct cancer and is frequently linked to inflammatory bowel disease.
  • Gallstones and chronic gallbladder inflammation: Linked to gallbladder cancer.
  • Parasitic infections and liver fluke infestations: Frequently found in endemic areas and linked to cholangiocarcinoma.
  • Family history or genetic disorders: Such as hemochromatosis or Wilson’s disease.
  • Exposure to toxins: Including aflatoxins (mold found in stored grains), thorium dioxide, or certain industrial chemicals.

Symptoms and Early Warning Signs

Many hepatobiliary cancers don't show any symptoms until they've spread.

Nonetheless, some indicators ought to trigger a medical assessment:

  • Persistent pain in the upper right abdomen or back
  • Unexplained weight loss or loss of appetite
  • Yellowing of the skin and eyes (jaundice)
  • Swelling of the abdomen (ascites)
  • Nausea or vomiting
  • Pale stools and dark urine
  • Fatigue or general weakness
  • Fever, especially in bile duct cancer

Liver tumors can occasionally be unintentionally discovered while imaging for another illness. Regular surveillance is recommended for patients with known liver disease in order to identify cancer early.

Diagnosis and Evaluation

Blood tests, imaging, and tissue sampling are all used in the diagnosis process:

  • Liver function tests (LFTs) and tumor markers such as alpha-fetoprotein (AFP) for liver cancer or CA 19-9 for cholangiocarcinoma.
  • Ultrasound, CT scan, or MRI to detect and assess the size, location, and spread of tumors.
  • PET-CT scans may be used in certain cases to evaluate for metastasis.
  • Biopsy may be required to confirm the type of cancer, although in some liver cancers, imaging and blood markers may be sufficient.
  • Endoscopic procedures like ERCP or cholangioscopy may be used for bile duct cancers.

When choosing a treatment plan, staging the cancer is essential because it establishes whether surgery is practical or if systemic therapy is required.

Treatment Options

The type, size, location, liver function, and spread of the cancer all influence treatment approaches. Hepatologists, oncologists, radiologists, and surgeons are frequently involved in a multidisciplinary approach, which is essential.

1. Surgery

The best chance of recovery for eligible patients is surgical resection, particularly for early-stage cancers of the liver, gallbladder, or bile duct. Liver transplantation may be an option in certain hepatocellular carcinoma cases.

2. Ablative Therapies

Without requiring extensive surgery, radiofrequency ablation (RFA) or microwave ablation can be used to kill cancer cells in small liver tumors.

3. Transarterial Chemoembolization (TACE) and Y-90 Radioembolization

These minimally invasive techniques, which are particularly helpful in intermediate-stage HCC, directly administer chemotherapy or radiation to the liver tumor through its blood supply.

4. Chemotherapy

For cholangiocarcinoma and gallbladder cancer that is advanced or incurable, systemic chemotherapy is frequently the standard treatment. Commonly used medications include cisplatin and gemcitabine.

5. Targeted Therapy and Immunotherapy

For advanced liver cancer, therapies like sorafenib, lenvatinib, and atezolizumab with bevacizumab have become commonplace in recent years. Tumor molecular testing can assist in determining a patient's eligibility for immune checkpoint inhibitors or targeted agents.

Recovery, Monitoring & Support

Patients need to be closely monitored with routine imaging, liver function tests, and symptom checks after treatment. Supportive care, including pain management, nutrition, and emotional health, is just as vital.

In order to manage underlying illnesses like cirrhosis or hepatitis, patients with liver disease may also require continuous care. Long-term follow-up is crucial for patients undergoing major surgery or transplantation.

Can These Cancers Be Prevented?

Although some hepatobiliary cancers cannot be avoided, there are a number of ways to lower the risk:

  • Vaccination against hepatitis B
  • Prompt treatment of hepatitis B or C infections
  • Avoiding alcohol abuse and managing fatty liver
  • Maintaining a healthy weight and balanced diet
  • Avoiding exposure to aflatoxins and industrial chemicals
  • Regular screening for high-risk individuals, especially those with cirrhosis or PSC

When to Seek Specialist Care

It is crucial to seek advice from experts who have experience treating hepatobiliary cancers due to their complexity. Decisions regarding systemic therapy, clinical trials, or palliative care when necessary can be guided by the early involvement of a medical oncologist.

Hepatobiliary cancers are treated holistically by medical oncologist Dr. Amit Badola. As part of a team-based, evidence-based approach to cancer care, he treats liver, bile duct, and gallbladder cancers with immunotherapy, chemotherapy, and targeted therapies.