Explore the significance, uses, and limitations of cancer marker blood tests in modern healthcare.
Cancer markers are substances found in blood or tissue that may indicate cancer presence, though they are not definitive.
Two main types: tumor-derived markers produced by cancer cells, and body-response markers made by the body.
Familiar names include PSA for prostate cancer and CA-125 for ovarian cancer; each has specific associations.
Elevated marker levels don’t confirm cancer; they’re only part of a comprehensive diagnostic process.
These tests help monitor treatment success, detect recurrence, and aid in prognosis assessments.
False positives and negatives, along with lack of specificity, challenge the reliability of marker tests.
Considered for high-risk individuals with family history or known genetic mutations associated with cancer.
Test results should be evaluated alongside thorough medical history and examinations for an accurate assessment.
Innovations like liquid biopsies and genomics are set to improve the accuracy and early detection of cancers.
Routine testing isn’t recommended for everyone due to potential anxiety and unnecessary procedures.