Nguyen Duy Hai, had a 200lb tumor which doctors initially said they will not be able to remove cause he will not survive the operation.
The video below shows the doctors breaking the news to Nguyen, informing him that he will not to survive. Instead of Nguyen breaking down, he gives the doctors a response they never expected.
However, despite the doctors first prognosis his tumor was removed in 2012 and he was able to walk again! Sadly he died in 2013.