Doctors are increasingly detecting stomach tumors at an early stage, raising hopes for lifesaving treatment for one of the deadliest types of cancer. Stomach cancer, the disease that killed country music star Toby Keith in 2024, is typically difficult to catch early and tends to be discovered at an advanced stage when cancer cells have spread, researchers reported Saturday at Digestive Disease Week, a major international conference for doctors and researchers in gastroenterology, liver diseases and endoscopy.