New York State Police released details of Richard Matt's autopsy on Sunday.
Officials say Matt also had bug bites on his legs, blisters and minor abrasions that would be expected for someone who had been living in the woods. Toxicology results are still pending.
Matt was shot and killed by a member of a U.S. Customs and Border Protection Tactical Unit on Friday. He and another inmate escaped from a maximum-security prison near the Canadian border on June 6.
Hundreds of law enforcement personnel are still searching for David Sweat.
