As if silicon-filled breast implants did not have enough problems associated with them, a new a European study is raising new concerns about their safety just one month after the FDA approved the return of silicone gel-filled breast implants to the U.S. market. What perfect timing, eh?

Austrian researchers say that surface-level contaminants on the implants themselves could be the cause of immune reactions in women who have them. Dow Corning was sued into bankruptcy in the 1990s due to major problems with silicon breast implants, which were linked with autoimmune illnesses and even cancer.