Summary of Key Points Introduction and Historical Perspective X-rays were discovered emanating from an energized Crookes tube by Wilhelm Roentgen in 1895. That some naturally occurring elements emitted ionizing radiation was discovered by Henri Becquerel 1896. The radioactive elements radium…
Key Points Incidence For 2019, the predicted incidence of esophageal and gastric cancers in the United States is projected to be 17,650 and 27,510 cases, respectively. The predicted number of deaths is 16,080 and 11,140, respectively. The site of origin…
Gastrointestinal (GI) cancer continues to be a common health problem. Approximately 319,160 new cases of GI malignant disease were estimated to occur in the United States in 2018 with an associated 160,820 deaths. Although colorectal tumors account for almost 50%…