About Cancer Tumor Markers

Overview

Tumor markers are substances produced either by cancer cells or by the body in response to cancer. These markers can include proteins, genetic changes, or other materials, and they are identified through tests on body fluid or cell samples. Doctors use tumor markers in several ways to help manage cancer:

• Diagnosis: Tumor markers can help diagnose cancer by finding certain markers in the blood or other bodily fluids.
• Treatment selection: Some tumor markers can show how well certain treatments will work, helping doctors choose the best approach for treating a specific type of cancer.
• Monitoring treatment response: Changes in tumor marker levels over time can show whether a treatment is working or if the cancer is coming back.
• Prognosis estimation: Tumor markers can give information about how fast the cancer is growing, life expectancy after treatment, and the chances of it coming back.

However, it's important to know that not all cancers have tumor markers, and some non-cancer conditions can also cause higher marker levels. This means tumor markers are just one part of the diagnosis and healthcare providers need to consider other information as well.