Optical Imaging of Gastrointestinal Biopsy Samples and Their Correlation With Histology

The investigators have previously developed optical imaging systems that have been able to provide highly detailed images of tissue structures in multiple application areas including Cardiology, Gastroenterology, and Pulmonology. They are looking to continue the advancement of these various technologies under development.

The population will include participants who are undergoing elective esophagogastroduodenoscopy with biopsy, colonoscopy with biopsy, and/or endo-mucosal resection.The endoscopist will take no more than 3 biopsies in addition to the standard of care biopsies.

The study will be optical imaging of the ex vivo GI specimens that are being collected. Specimens will be collected for research purposes only. Offline analysis of the samples will be performed, and optical imaging findings will be correlated with the pathology findings. This will require review of the medical record to link the findings of the imaging with the pertinent medical information. Samples will be de-identified and participants will be assigned a unique number. The tissues will be placed in marked containers labeled "for research purposes only". The samples collected will be brought to the Tearney Research Laboratory for imaging and processing. The Optical imaging of the tissue samples will not affect the standard of care procedure.