On September 22, 1987, Emperor Shōwa had abdominal surgery at the Imperial Household Agency hospital. The agency announced chronic pancreatitis. In fact, it was cancer.
Reporters at a television network later said that they had confirmed early on that it was cancer. They had held back, they said, because of the question of telling the emperor himself and his family, and because of the social impact. On January 7, 1989, his chief physician announced the final diagnosis: a tumor around the duodenal papilla.