Efficacy and Safety of ESD for the Treatment of Superficial Gastric Neoplasms

This study tracks the outcomes of a minimally invasive stomach procedure called ESD (endoscopic submucosal dissection) — used to remove early stomach tumors through a camera — to understand how well it works in real-world practice. **You may be eligible if...** - You are over 18 years old - You have been diagnosed with a superficial (early-stage) stomach tumor or growth that qualifies for ESD according to current guidelines - You have a stomach growth outside the standard ESD guidelines but are not fit enough for surgery **You may NOT be eligible if...** - Your lesion turns out to be non-cancerous on final analysis - You have a stomach tumor outside ESD guidelines but you are still fit enough for surgery - Imaging shows that the cancer has grown into the muscle layer of the stomach wall, or has spread to lymph nodes or other organs Talk to your doctor to see if this trial is right for you.