NATIONAL BRIEFING / WASHINGTON, D.C.

Supreme Court Justice Ruth Bader Ginsburg, who had cancer surgery earlier this year, made a quick return to work after feeling ill at the office and spending Thursday night in a hospital as a precaution.

The 76-year-old justice was released from Washington Hospital Center in the morning and was at her desk by early afternoon, the court said.

Ginsburg became lightheaded in her office Thursday afternoon after receiving treatment for anemia. Although she was found to be stable after an examination, the court said, she was taken to the hospital as a precaution. Ginsburg underwent surgery for pancreatic cancer in February followed by a round of chemotherapy.

Anemia is a common side effect of chemotherapy for pancreatic cancer.