1st RD BBL in US. 2nd RD US different Doc. 2nd RD Doc stated he did not do the fat transfer due to finding silicone beads in lower back during lipo. He stated that they were clogging up his tool. Doc stated that he was not familiar with the substance, and that the anesthesiologist called it silicone. I have never had silicone injections!I Got an MRI, no silicone found! Per Radiologist, he POSSIBLY saw necrotic tissue! Small bead appearance was similar to silica gel. What could this have been!?