Diagnosis of Gallbladder Cancer
The diagnosis of gallbladder cancer often occurs at a late stage because the disease usually causes no symptoms early on. Gallbladder cancer is often discovered incidentally during gallbladder removal surgery for gallstones or inflammation. Therefore, when symptoms are present, further tests are necessary to confirm the diagnosis and determine how far the cancer has spread.
Initial Evaluation
The diagnostic process begins with:
A review of symptoms, medical history, and risk factors
A physical examination, checking for abdominal tenderness, jaundice, or palpable masses
Routine blood tests to assess liver function, which may reveal abnormalities suggestive of bile duct obstruction
These early steps may raise suspicion, prompting further imaging.
Imaging Studies
To evaluate the gallbladder and surrounding organs, doctors may order:
Ultrasound – often the first test, can detect gallstones, thickened gallbladder walls, and masses
CT (Computed Tomography) scan – provides detailed images of the gallbladder, liver, and lymph nodes
MRI and MRCP (Magnetic Resonance Cholangiopancreatography) – useful for visualising bile ducts and assessing tumour spread
PET scan – Doctors sometimes use it in selected cases to detect cancer spread (metastasis)
These scans help in both diagnosing and staging the cancer.
Biopsy and Histological Confirmation
A biopsy involves collecting tissue samples for examination under a microscope to confirm cancer:
If a suspicious mass appears, a doctor may perform a fine-needle aspiration (FNA).
Sometimes, cancer is only diagnosed after gallbladder removal surgery, when the tissue is sent to the lab
The type and grade of cancer cells guide treatment planning.
Staging
Once gallbladder cancer is confirmed, it is staged from Stage I (localised) to Stage IV (advanced or metastatic) based on:
Tumour size
Involvement of lymph nodes
Spread to nearby organs (liver, bile ducts, intestines)
Accurate staging is crucial in determining treatment options and expected outcomes.
Diagnosis of Gallbladder Cancer
A timely and accurate diagnosis of gallbladder cancer offers the best chance for effective intervention. However, because early detection is rare, education and surveillance in at-risk groups are vital.
