Skeletal Abnormalities in Neurofibromatosis (image) Vanderbilt University Medical Center Share Print E-Mail Caption Mice missing the gene neurofibromin in bone cells have more non-calcified bone (osteoid), shown in pink, compared to normal mice. In this image, calcified bone is black and bone-forming osteoblasts lining the deposited osteoid are orange-brown. Credit Image courtesy of Florent Elefteriou, Ph.D. Usage Restrictions Please credit Florent Elefteriou, Ph.D./Vanderbilt University Medical Center Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.