The purpose of the study is to investigate if Cysview and blue light is better than white light in detecting tumors in individuals with bladder cancer prior to and during surgery that are in follow-up for tumor recurrence. Cysview is an FDA approved drug that is used in combination with a lamp from KARL STORZ to detect tumors…
This research study will look at a newer treatment option for Barrett's Esophagus (BE) which uses nitrous oxide to freeze unwanted tissue. The most commonly used treatment method is Radiofrequency Ablation (RFA) which uses heat to destroy the pre-cancerous tissue. Nitrous Oxide ablation using the C2 CryoBalloon Focal Ablation…
The purpose of this study is to evaluate a new technique called Wide Area Transepithelial Sample 3-Dimensional Esophageal Biopsy (WATS) with computer assisted method of analysis of brush biopsy. This study will assess whether performing standard biopsies in addition to the WATS brush biopsies identifies more patients with dysplasia than does performing…