Molecular products metabolized and secreted by neoplastic tissue and characterized biochemically in cells or BODY FLUIDS. They are indicators of tumor stage and grade as well as useful for monitoring responses to treatment and predicting recurrence. Many chemical groups are represented including HORMONES; ANTIGENS; amino and NUCLEIC ACIDS; ENZYMES; POLYAMINES; and specific CELL MEMBRANE PROTEINS and LIPIDS.

Synonyms: Tumor Marker, Biochemical, Tumor Marker, Biologic, Cancer Biomarkers, Tumor Biomarker, Metabolite Marker, Neoplasm, Neoplasm Metabolite Markers, Marker, Neoplasm Metabolite, Biomarker, Tumor, Markers, Tumor Metabolite, Markers, Biologic Tumor, Marker, Biological Tumor, Markers, Tumor, Tumor Metabolite Marker, Tumor Marker, Tumor Markers, Tumor Markers, Biochemical, Biologic Tumor Marker, Biomarkers, Tumor, Marker, Tumor, Metabolite Marker, Tumor, Biochemical Tumor Marker, Biochemical Tumor Markers, Biological Tumor Marker, Biologic Tumor Markers, Tumor Marker, Biological, Tumor Metabolite Markers, Biological Tumor Markers, Marker, Tumor Metabolite, Markers, Biochemical Tumor, Carcinogen Markers, Biomarker, Cancer, Tumor Markers, Biological, Tumor Markers, Biologic, Cancer Biomarker, Marker, Biochemical Tumor, 0, Markers, Biological Tumor, Markers, Neoplasm Metabolite, Markers, Carcinogen, Metabolite Markers, Neoplasm, Neoplasm Metabolite Marker, Biomarkers, Cancer, Metabolite Markers, Tumor, Tumor Biomarkers, Marker, Biologic Tumor