James D. Lewis, MD
Last Modified: November 1, 2001
Dear OncoLink "Ask the Experts,"
Ten years ago I had polyps. They were not cancerous. Could they become cancerous? What are the symptoms of colon cancer?
James D. Lewis, MD, MSCE, Assistant Professor of Medicine, Senior Scholar at the Center for Clinical Epidemiology and Biostatistics, and Senior Fellow in the Leonard Davis Institute of Health Economics at the University of Pennsylvania, responds:
Regarding polyps, some can become cancerous. However, if your polyps were completely removed, they are unlikely to become cancerous. Importantly, even if your polyps were removed, you could develop new polyps. You should speak with your primary care physician about colon cancer surveillance.
Colon cancer can present with many different symptoms. Among these are: