Conjoined twins separated with help of virtual reality in Brazil

This undated handout picture released by Rio de Janeiro's State Health Department shows Brazilian conjoined twins Bernardo (second from left) and Arthur with their parents Adriely (left) and Antonio Lima, after the twins' operation at the Instituto Estadual do Cerebro Paulo Niemeyer (IECPN) hospital in Rio de Janeiro, Brazil. Photos: AFP/Rio de Janeiro State Health Department

Conjoined twins born in Brazil with a fused head and brain have been separated in what doctors described Monday as the most complex surgery of its kind, which they prepared for using virtual reality.

Arthur and Bernardo Lima were born in 2018 in the state of Roraima in northern Brazil as craniopagus twins, an extremely rare condition in which the siblings are fused at the cranium.