Tumor Marker Testing

Tumor marker testing is a blood test that measures specific cancer-related antigens to evaluate an individual’s potential risk for certain cancers. It includes assessment of markers such as CA-125, CA 15-3, CA 19-9,Carcinoembryonic Antigen (CEA), and Prostate-Specific Antigen (PSA). Elevated levels may occur in both malignant and benign conditions; hence, this test serves as a risk assessment tool rather than a definitive diagnostic method.

What’s Included in the Test:

  • CA-125: Primarily associated with risk of ovarian, fallopian tube, lung, and breast cancers.
  • CA 15-3: Commonly used in monitoring breast cancer, and may also be elevated in lung, pancreatic, and prostate cancers.
  • CA 19-9: Commonly used as a tumour marker for pancreatic caner, biliary track cancer, gallbladder cancer, gastric cancer and colonrectal cancer. 
  • CEA: Broadly used to assess risk for colorectal, lung, gastric, pancreatic, liver, and other cancers.
  • PSA: Mainly used to screen for prostate cancer and monitor its progression.

Potential Health Concerns:

  • Gastric cancer risk: Particularly for individuals with a family history.
  • Colorectal cancer susceptibility: Especially if there is a personal or familial history of polyps or genetic syndromes.
  • Lung cancer probability: Useful for early detection and monitoring over time.

Who Should Consider This Test

Individuals with a family history of cancer, especially relevant types. Those with unexplained lumps or clinical signs requiring risk evaluation. Individuals with potential health concerns or suspected cancer risks.

Sample Type

Blood

Turnaround Time

2–4 weeks

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