Here's a photo of an aged man:
And here's another one when he was younger:
What's the English for the spot on the crown of his head? It's too big and quite unusual in shape to be called a mole, isn't it? May it just be called a pigmented spot or there's a more exact and interesting word for it? And the man wasn't born with it and he didn't have it when he was a few decades younger than in the photo.
And here, he is yet much younger: