“Here’s what the story is. I had an MRI. The doctor said it was the best result he has ever seen as a doctor. That’s it.” Trump said. “But, I had an MRI as part of my standard, yearly—or, I think they do it every two years. But I have the physical every year. But the result was outstanding.”
“Was it your brain, or … ?” the reporter asked.
“I have no idea what they analyzed, but whatever they analyzed, they analyzed it well,” the president said.

Yeah, when my Dad was being examined to figure out how his dementia had progressed, the doctors didn’t tell him what they brought him in for exactly either, for fear of triggering rage in him - which, like Trump is constantly displaying, is a clear sign of frontotemporal dementia, which was the variant my Dad suffered from too.
Me and my siblings had to deal with my Dad’s dementia for years until he passed away, and we feel like we’re watching the exact same movie all over again whenever we see or hear Trump. He’s at the stage where it’s starting to become quite obvious that he’s not completely functional anymore.
I’m pretty sure others who’ve had to deal with loved ones with dementia - particularly violent forms of it - recognize the symptoms too.