The socialite's younger sibling, Barron, was taken from the Fontainebleau Hotel in Miami, Florida to a medical centre on Friday night (06.12.13), and given a CT scan to check for internal injuries.
A source told gossip website TMZ.com that the 24-year-old hotel heir was advised to seek emergency medical treatment because his injuries, including several cuts to his face, were so severe.
Barron, who was involved in an altercation while partying at a mansion where the 'Mean Girls' actress is currently staying in the early hours of Friday morning, turned down an ambulance that arrived at his hotel and instead got private transport to the University of Miami Hospital, where he received various treatments.
Barron has claimed that Lindsay approached him at the party with a male friend and told him: ''You talk s**t about me to my boyfriend, this is what you get.''
He also told police that the the troubled star, 27, was laughing as the unknown man then beat him up.
Lindsay and her father, Michael Lohan, have denied she was involved in the incident.
The 'Mean Girls' star previously fell out with Paris in 2006 when society heir Brandon Davis launched a huge rant against Lindsay, egged on by the socialite and businesswoman.
Among other things, Brandon said of Lindsay: ''I think she's worth about seven million [dollars], which means she's really poor. It's disgusting. She lives in a motel.''
The actress spoke about raising her 11 year old daughter Matilda in the wake of Heath Ledger's death eight years ago.
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