Cardia stomach cancer, also known as gastroesophageal junction cancer, is the most common type of stomach cancer in the U.S. Named for its proximity to the heart, the cardia is the area where the stomach meets the esophagus — the gastroesophageal junction.
Cardia stomach cancer is more common in the U.S. due to risk factors associated with the upper stomach, including chronic acid reflux and
Barrett's esophagus, according to Dr. Kankeu Fonkoua.
https://cancerblog.mayoclinic.org/2021/11/29/what-you-should-know-about-stomach-cancer/