Tumor markers are substances produced by cancer cells or the body in response to cancer, often detected in blood or body fluids. For budding physicians, understanding key markers like PSA, AFP, CEA, and CA-125 is essential for diagnosis, monitoring, and treatment evaluation. While not definitive for diagnosis, they provide valuable clues when interpreted with clinical context. With emerging genetic markers and personalized medicine, knowledge of tumor markers is becoming increasingly vital in modern oncology practice.
Alumni- Tata Memorial Hospital
Senior Consultant Medical Oncology, Dharamshila Narayana Superspeciality Hospital, New Delhi