Fort William man Callum Macdonald was caught up in the Paris attack on Friday, and remained in hospital last night.
It is believed the father-of-one was found unconscious outside the Bataclan Music Hall with a head injury.
No details are yet available on his condition from hospital in France.
Another survivor of the Bataclan theatre massacre has described how she cheated death after taking a wrong turn.
Mother-of-two Mariesha Jack and her friend Christine Tudhope ended up trapped in a cellar below the stage for three hours after terrorists opened fire on the crowd.
“Confused, we ran right and ended up being in a room we couldn’t get out of. There were no exits,” said Ms Jack.
“We later found out that if we had gone left and went out on to the street, they were shooting from the windows.
“It was probably a saving grace that we were trapped where we were.
“We didn’t think that at the time because we were there for so long.”
The Eagles of Death Metal fans had travelled to Paris to see the band instead of catching the Glasgow gig two days earlier.
Ms Jack, 33, of Auchterarder, said they bolted for safety after realising the shots were not part of the show, but quickly began to panic after realising they were trapped in the cellar.
She said: “A few seconds later, the door bursts open and we just thought, ‘they’re coming, we’re going to die’.
“It was two other concert goers. We managed to lock the door and barricade ourselves in, turn the lights out and we were then trapped there for the next three hours just having to listen to what was happening.
“There was a period of time where there was nothing but silence. They weren’t shooting people.
“We heard a couple of really loud bangs one which was directly above us.
“We found out that was them detonating the bombs.”
Ms Tudhope, of Saline, Fife, added: “We could hear everything from above going on. Bullets, grenades, explosions, screams, we could hear it. I think we were directly under the stage.
“At one point we could hear the terrorists on their walkie-talkies. We weren’t sure who they were speaking to.
“But the two Italian guys could speak French and told us they had hostages and that they were speaking to the police.
“They wouldn’t tell us what else they said. They said it was better we didn’t know.”