Everyone has questions concerning cancer and Michael Sherman, medical director for Contra Costa Oncology, would like to answer yours. Contra Costa Oncology has offices in Walnut Creek, Concord, San Ramon and Rossmoor.  If you have questions for Dr. Sherman, e-mail Donna Lynn Rhodes or Martha Ross, editor of Walnut Creek Patch, at martha@patch.com. 

Q:  Are all tumors malignant?

A:  A malignant tumor means that a group of cells, or growth, has the ability to grow without stopping and invade surrounding tissues or spread to the bloodstream. Benign tumors can grow, but they do not invade or spread. Early detection is key and you should tell your doctor about any new growths or changes to existing growths. A biopsy is performed to determine if that growth or tumor is cancerous. 

Q:  What is does Cancer Stage 1, II, III and IV mean?

A:  Doctors use the word 'stage' to communicate how advanced cancer cells have spread. Stage also can relate to how curable a cancer may be. Every cancer has its own stage, based on a combination of factors. The lower the stage the more curable the disease. Once the cancer has metastasized, or spread, it is at Stage III or Stage IV and far more advanced. The chance of remission or recovery is much greater when the cancer is detected at Stage I, so discussing any changes to your health with your primary care physician is vital to your survival.