A Rabbit's Esophagus (IMAGE) Washington University in St. Louis Caption Since most animals have body plans that are essentially a tube within a tube, a surprising amount of the body is within the reach of photoacoustic tomography. This image shows a rabbit’s esophagus and adjacent internal organs. Photoacoustic colonoscopy would allow physicians to visualize not just superficial polyps but also deeper lesions Credit Joon Mo Yang/Liihong Wang Usage Restrictions Credit required License Licensed content 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.