The exact cause of EFT is not known, but it is believed to be due to changes that occur in the chromosomes. Other theories and associations have been suggested as risk factors. The following are the most common symptoms for Ewing's family of tumors, however, each individual may experience symptoms differently. A risk factor is anything that may increase a person's chance of developing a disease. It may be an activity, such as smoking or diet, family history, or many other things.
Different diseases have different risk factors.
Although these factors can increase a person's risk, they do not necessarily cause the disease. Some people with one or more risk factors never develop the disease, while others develop the disease and have no known risk factors. But, knowing your risk factors to any disease can help to guide you to take appropriate actions, including changing behaviors and being clinically monitored for the disease. The symptoms of EFT may resemble other bone cancer problems, such as osteosarcoma. Consult your physician for a diagnosis.