The tumor was treated definitively and there is no evidence of disease elsewhere in the body.
Ginsburg first discovered an abnormality in early July during a routine blood test, and a subsequent biopsy revealed a malignant tumor on her pancreas.
The court kept Ginsburg's latest cancer secret for three weeks, until she finished radiation treatment. As part of Ginsburg's treatment, doctors inserted a stent into her bile duct.
Pete Williams, NBC's justice correspondent, says that Ruth Bader Ginsburg has undergone more treatment for cancer.
She missed oral arguments for the first time earlier this year while recovering, but participated in rulings via court transcripts and in writing.
Pancreatic cancer is particularly unsafe, but Ginsburg in an interview with NPR in July made light of predictions about her fate at the time. According to the website of the Columbia Pancreas Centre at the Columbia University Irving Medical Centre in NY, the percentage of people still alive five years after a diagnosis of pancreatic cancer that has not spread beyond the pancreas is 27.1 per cent. The Justice tolerated treatment well.
"There was a senator - I think it was after the pancreatic cancer - who announced with great glee that I was going to be dead within six months", she said. "No further treatment is needed at this time".
Ginsburg has survived cancer before: colon cancer in 1999 and pancreatic cancer 10 years later.
Ginsburg, appointed in 1993 by Democratic president Bill Clinton, broke three ribs in a fall in November. Yet there is no obligation for justices to disclose details about their health, and Ginsburg has generally made more information available than some of her colleagues. The tumor was treated definitively and there is no evidence of disease elsewhere in the body. She cancelled her annual summer visit to Santa Fe, but has otherwise maintained an active schedule. "That senator, whose name I have forgotten, is now himself dead, and I", she added with a smile, "am very much alive".
She is the eldest of the Supreme Court justices, but has not indicated she plans to retire. The Supreme Court announced August 23, 2019, that Ginsburg has been treated for a malignant tumor.