Cancer forms in the body when an abnormal growth of cells is carried throughout the body by the lymphatic system. Find out how cancer causes swollen lymph nodes with insight from a doctor in this free video on cancer.
Expert: Dr. David Cathcart
Bio: Dr. David Cathcart specializes in occupational medicine and has an in-depth knowledge of cancer, as well as experience dealing with cancer patients and treatment for multiple years.
Filmmaker: Johnny Cathcart
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