Tethered Capsule Endomicroscopy (image) Massachusetts General Hospital Share Print E-Mail Caption By manipulating the plastic ball attached to the flexible tether (lower, right hand) the system operator can control the position of the endomicroscopy capsule in a patient's esophagus. Credit Michalina Gora, Ph.D., and Kevin Gallagher, Wellman Center for Photomedicine, Massachusetts General Hospital. Usage Restrictions None 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.