The purpose and duration of Cardinal Pell's visit to Rome were not confirmed by the broadcaster.
Pell took a leave of absence from the Vatican in 2017 to face charges of sexual abuse dating back to the 1990s. He was eventually convicted and sentenced to six years in prison in Australia, although his conviction was later overturned by the country's High Court this past April.
High Court judges ruled that jurors in the previous case had failed to suitably account for the evidence that cast doubt on the cardinal's guilt.
His return to Rome comes just four days after Cardinal Giovanni Angelo Becciu unexpectedly resigned from his position amid accusations of financial misconduct.