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Tumor Markers
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Cancers
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What Else?
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When/How Used
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Usual sample
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AFP(Alpha-feto protein)
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Liver, germ cell cancer of ovaries or testes
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Also elevated during pregnancy
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Help diagnose, monitor treatment, and determine recurrence
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Blood
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B2M (Beta-2 microglobulin
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Multiple myeloma and lymphomas
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Present in many other conditions, including Crohn’s disease and hepatitis; often used to determine cause of renal failure
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Determine prognosis
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Blood
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CA 15-3 (Cancer antigen 15-3)
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Breast Cancer and others, including lung, ovarian
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Also elevated in benign breast conditions; doctor can use CA 15-3 or CA 27.29 (two different assays for same marker)
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Stage disease, monitor treatment, and determine recurrence
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Blood
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CA 19-9 (Cancer antigen 19-9)
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Pancreatic, sometimes colorectal, bile ducts, and some types of ovarian cancer
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Also elevated in pancreatitis and inflammatory bowel disease
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Stage disease, monitor treatment, and determine recurrence
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Blood
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CA 125 (Cancer antigen 125)
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Ovarian
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Also elevated with endometriosis some other benign diseases and conditions; not recommended as a general screen
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Help diagnose, monitor treatment, and determine recurrence
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Blood
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Calcitonin
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Thyroid medullary carcinoma
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Also elevated in pernicious anemia and thyroiditis
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Help diagnose, monitor treatment, and determine recurrence
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Blood
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CEA (Carcino-embryonic antigen)
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Colorectal, lung, breast, thyroid, pancreatic, liver, cervix, and bladder
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Elevated in other conditions such as hepatitis, COPD, colitis, pancreatitis, and in cigarette smokers
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Monitor treatment and determine recurrence
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Blood
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Chromogranin A (CgA)
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Neuroendocrine tumors (carcinoid tumors, neuroblastoma)
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May be most sensitive tumor marker for carcinoid tumors
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To help diagnose and monitor
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Blood
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Estrogen receptors
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Breast
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Increased in hormone-dependent cancer
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Determine prognosis and guide treatment
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Tissue
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hCG (Human chorionic gonadotropin)
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Testicular and trophoblastic disease
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Elevated in pregnancy, testicular failure
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Help diagnose, monitor treatment, and determine recurrence
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Blood, urine
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Her-2/neu
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Breast
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Oncogene that is present in multiple copies in 20-30% of invasive breast cancer
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Determine prognosis and guide treatment
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Tissue
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Monoclonal immunoglobulins
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Multiple myeloma and Waldenstrom’s macroglobulinemia
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Overproduction of an immunoglobulin or antibody usually detected by protein electrophoresis
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Help diagnose, monitor treatment, and determine recurrence
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Blood, urine
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Progesterone receptors
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Breast
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Increased in hormone-dependent cancer
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Determine prognosis and guide treatment
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Tissue
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PSA (Prostate specific antigen), total and free
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Prostate
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Elevated in benign prostatic hyperplasia, prostatitis and with age
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Screen for and help diagnose, monitor treatment, and determine recurrence
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Blood
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Thyroglobulin
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Thyroid
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Used after thyroid is removed to evaluate treatment
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Determine recurrence
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Blood
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