Biopsy

In some cases, the doctor will remove a sample of tissue from your tumor. This is called a biopsy.  A doctor who specializes in identifying disease, called a pathologist, will look at the sample under a microscope to check for cancer.

Your doctor may send you to a surgeon or another doctor for a biopsy. Although a physical exam and the pictures of the growth may suggest that a tumor is cancerous, a biopsy is the only way to be certain. The biopsy tells the doctor what, if any, type of tumor you have. Your doctor might perform one of these three different types of biopsy. If there is a chance that a tumor is a Ewing's tumor, it is very important that the biopsy be done by a doctor with experience in treating this disease.