Also known as: Adenocarcinoma of Esophagogastric Junction / Adenocarcinomas of the Gastroesophageal Junction / Adenocarcinoma, Esophagogastric Junction / GEJ Adenocarcinoma / Adenocarcinoma of the Gastroesophageal Junction / Gastroesophageal Junction (GEJ) Adenocarcinoma / Gastro-esophageal Junction Adenocarcinoma / Adenocarcinoma of the Gastro-oesophageal Junction / Gastroesophageal Junction Adenocarcinoma / Esophagogastric Junction Adenocarcinoma / Adenocarcinoma of the Oesophago-gastric Junction / Adenocarcinoma of the Esophagogastric Junction / Adenocarcinomas of the Esophagogastric Junction / Adenocarcinoma of the Esophago-gastric Junction / Adenocarcinoma - GEJ / Adenocarcinoma of Gastroesophageal Junction / Adenocarcinoma, Gastroesophageal Junction / Adenocarcinoma - Gastroesophageal Junction (GEJ) / Adenocarcinoma of the gastrooesophageal junction / Esophageal adenocarcinoma / Oesophageal adenocarcinoma NOS / Adenocarcinoma of esophagus / Adenocarcinoma of esophagus (disorder) / Adenocarcinoma of oesophagus / Oesophageal adenocarcinoma