UPDATE 1-Supreme Court Justice Ginsburg back at court after cancer bout

U.S. Supreme Court Justice Ruth Bader Ginsburg is back at the court after missing oral arguments in January as she recovered from lung cancer surgery at home, a court official said on Friday. Ginsburg, who will turn 86 in March, had been working from home and participating and voting in cases since her December surgery by reading argument transcripts and case briefs. She attended the justices' closed-door conference to discuss cases on Friday.

While Ginsburg was expected to attend the next session of oral arguments beginning on Feb. 19, court officials could not confirm she would be on the bench next week. Last month, the court announced that Ginsburg's recovery was on track and that there was "no evidence" of remaining disease.

Ginsburg, who joined the court in 1993, underwent a surgical procedure called a pulmonary lobectomy on Dec. 21 at Memorial Sloan Kettering Cancer Center in New York to remove two cancerous nodules in her left lung. She was released from the hospital on Dec. 25. Ginsburg missed oral arguments in January for the first time in her lengthy career on the court, fueling speculation about her ability to continue in the job. (Reporting by Andrew Chung; editing by Jonathan Oatis)