Gallbladder cancer

Disease Description (Causes and Symptoms)

• Definition: Gallbladder cancer is a malignant tumor arising in the gallbladder, and most cases are adenocarcinomas originating from the gallbladder mucosa.
• Main causes and risk factors: The dysplasia–carcinoma sequence caused by chronic inflammation is the main mechanism. Known risk factors include gallstones (especially those ≥3 cm in diameter or retained for a long period), gallbladder polyps (the possibility of neoplasia is 5–10%; risk is higher with a size ≥1 cm, age ≥50 years, a solitary sessile polyp, or accompanying gallstones), a calcified gallbladder (porcelain gallbladder), anomalous pancreaticobiliary ductal junction, and chronic Salmonella Typhi carriers.
• Pathophysiology summary: Chronic irritation and inflammation of the gallbladder mucosa progress to dysplasia and develop into invasive cancer. Local invasion and metastasis to the liver, bile ducts, surrounding lymph nodes, and other organs are common.
• Main symptoms: Early stages may be asymptomatic or involve nonspecific symptoms (dull upper abdominal pain, right upper abdominal discomfort). As the disease progresses, symptoms may include jaundice (due to bile duct obstruction), weight loss, loss of appetite, nausea and vomiting, and weakness. In some cases, duodenal or colonic obstruction and worsening localized pain may occur.

Treatment Methods

• Surgery (curative treatment): The primary treatment with the aim of cure. The extent of surgery is determined according to the stage.
  • Disease limited to the mucosa or muscular layer (early lesion, e.g., T1a): May be treated with simple cholecystectomy (gallbladder removal).
  • More advanced stages (e.g., T2 or higher): Extensive resection including partial liver resection (removal of the gallbladder and adjacent liver parenchyma, wedge or segment IVb/V resection) and regional lymph node dissection is required.
  • Very advanced disease (e.g., extensive invasion of the liver, pancreas, and duodenum): Extensive resection such as hepatopancreatoduodenectomy (HPD) may be attempted, but the cure rate is low.
• Relief of bile duct obstruction (noncurative/palliative treatment): When jaundice is severe, biliary drainage is performed through endoscopic biliary stent insertion or, if this is not possible, percutaneous transhepatic biliary drainage (PTBD).
• Chemotherapy: Used in metastatic or unresectable cases or as postoperative adjuvant therapy. Gemcitabine + cisplatin-based regimens are commonly used as standard first-line combination therapy for cholangiocarcinoma and gallbladder cancer, but the response rate is not high. Treatment is adjusted according to the patient's condition and response to the medications.
• Radiation therapy: Used to prevent local recurrence, when complete resection is difficult, or to relieve symptoms (such as pain, bleeding, or bone metastasis). It may be combined with systemic treatment.
• Follow-up and monitoring: Treatment response and recurrence are monitored through imaging tests (ultrasonography, CT, MRI/MRCP), liver function tests, and tumor markers such as CA19-9 (however, CA19-9 is nonspecific).

Precautions (Including Lifestyle Management)

• Management of infection, thrombosis, and nutritional status is necessary before and after surgery. If jaundice or bile duct obstruction is present, drainage before surgery should be considered.
• Abstinence from alcohol and smoking cessation are recommended, along with nutritional management (consider nutritional support if weight loss occurs).
• If underlying conditions are present (ulcerative colitis, primary sclerosing cholangitis, pancreaticobiliary malformations, etc.), strengthen regular follow-up.
• Consult medical staff immediately if symptoms change, in order to detect postoperative complications such as bile leakage, infection, and liver failure early.

Checklist Before an Outpatient Visit (Including Items to Bring and Example Questions)

• Items to bring (recommended)
  • A list of all medications currently being taken (including prescription drugs, over-the-counter medications, and supplements)
  • Previous medical certificates, surgical records, and pathology reports (copies, if available)
  • CDs or reports of previous imaging tests (ultrasonography, CT, MRI, ERCP, etc.)
  • Recent blood test results (including liver function, bilirubin, and complete blood count) and tumor marker (CA19-9) results
  • A record of symptom changes (time of onset, location, intensity, and frequency of pain; jaundice, itching, weight changes, presence of fever, etc.)
• Information to tell the doctor in advance during the outpatient visit
  • The time jaundice began and how it has changed, including changes in urine and stool color
  • Amount of weight change (over the past 1–3 months) and changes in appetite
  • Whether there has recently been a fever or symptoms suggestive of infection
• Example questions (items that can be asked directly during the consultation)
  • “What is my stage based on the current imaging?”
  • “Is cure possible with surgery? What extent of surgery is recommended?”
  • “Is preoperative treatment, such as biliary drainage, necessary?”
  • “Do you recommend chemotherapy or radiation therapy? What are the expected benefits and side effects?”

General Example Questions to Ask the Doctor

• What is the exact stage of this disease, and what is the prognosis (survival rate) according to the stage?
• What treatment options are recommended, and what are their advantages and disadvantages (treatment goal: cure versus palliation)?
• In my condition, what is the likelihood of cure through surgery? What is the risk of complications during and after surgery?
• What are the standard drugs for chemotherapy and their expected side effects? What changes in daily life can be expected after treatment?
• What is the schedule for monitoring recurrence and metastasis after treatment, and what types of tests will be performed?

Examples of Disease-Specific Questions

• A gallbladder polyp (or gallstone) has been observed. What size, shape, or medical history would lead you to recommend prophylactic cholecystectomy?
• Does the current imaging show invasion of the bile duct (common bile duct)? Do I need a stent or PTBD first to relieve jaundice?

Note: Diagnosis and treatment vary according to each patient's individual condition (stage, general condition, and comorbidities), so a detailed plan should be determined in consultation with the treating medical team.