Cancer markers, usually referred to as tumor markers, are substances produced by cancerous cells or benign tumors, as defined by the National Cancer Institute. In some cases, healthy tissues also produce tumor markers in... More »

Blood tests are used to detect cancer markers, which are also called tumor markers and biomarkers, in the blood, according to the American Society of Clinical Oncology. Tumor markers are substances often produced by canc... More »

Tumor marker tests are typically done when cancer is or has been known to be present in a patient and are therefore not a routine aspect of medical practice. Cancer markers are not considered an effective tool for routin... More » Health Conditions & Diseases Cancer

Cancer markers are substances found in the body when a person is suffering from certain cancers. Through tests, tumor markers help to determine if a person has cancer and what type. More » Health Conditions & Diseases Cancer

Cancer markers falling outside the normal range need not be a cause for concern as there could be other reasons for the elevated levels of the markers. One prominent reason is the presence of a disease or health conditio... More » Health Conditions & Diseases Cancer

Cancer spreads through a process that involves the invasion of blood vessels and lymph nodes near a tumor, according to the American Cancer Society. The ability of cancer to spread successfully depends on a number of fac... More » Health Conditions & Diseases Cancer

The five-year survival rate for neuroendocrine cancer, a rare form of pancreatic cancer, is about 55 percent for localized and resected tumors and about 15 percent for tumors that doctors cannot remove, reports the Natio... More » Health Conditions & Diseases Cancer