Ginsburg underwent surgery on Friday to remove two malignant growths in her left lung.
Associate Justice Ruth Bader Ginsburg poses with other Justices of the United States Supreme Court during their official group photo at the Supreme Court on November 30, 2018 in Washington.
There is still no word when the/ 85-year-old will be able to return home but doctors say that recovery from this type of operation typically ranges from two to four days in the hospital.
In August of this year, she broke three ribs in a fall in her office, and was hospitalized overnight for observation but returned to work as soon as the court opened its session at the beginning of September. On Monday, a Court spokesperson said RBG was "up and working" while recuperating at Memorial Sloan Kettering Cancer Center. She survived pancreatic cancer thanks to an early diagnosis in 2009, and in 1999 underwent surgery, chemotherapy and radiation for colon cancer.
Supporters of Ms Ginburg have expressed concern that if anything happened to her, she could be replaced by a conservative justice.
Arberg said in a statement Friday that no other growths were found in scans before the procedure and that no additional treatment was planned.
Over the summer, Ginsburg said she plans to stay in the bench as long as she can.