Panthers goaltender Roberto Luongo will miss “an extended period of time” with a lower-body injury, coach Bob Boughner said after practice on Wednesday morning. “Whether that’s three weeks, four weeks, five weeks, we’re going to see how his rehab goes, that kind of thing,” Boughner said. “Definitely out for a while.” Luongo got hurt during the second period of Monday’s shootout loss to the New York Islanders, making a right pad save on a Ryan Pulock’s slap shot. Luongo was on the ice for a few minutes before being helped off the ice, unable to put weight on his right leg. Boughner said the injury was not to Luongo’s hip, which he had surgery on two summers ago. Multiple reports have said the injury is to Luongo’s groin. “When he went down, I was obviously scared about the hip,” Boughner said. “It’s not the hip, I can tell you that. That’s a good thing. Obviously, when he went down, everybody was a little worried about that. He’s here and he’s working out here today. It’s a rehab thing.” Luongo’s absence will be the second extended one of the season for the 38-year-old netminder. In October, he missed two weeks and six games with a right hand injury suffered against the Penguins on Oct. 20.