No matter what you call it, having clogged up Eustachian tubes is a miserable feeling. When that happens to me, it presses on my tonsils and makes my throat scratchy.
Conversely, if my throat is sore and my tonsils are swollen, it presses on my Eustachian tubes and makes my ears itch. It's a miserable feeling to have itching in what feels like the middle of your head, and not be able to scratch it. Hate that feeling.
"Fossa of Rosenmuller." Even if it's someone's name, I swear I don't know how doctors come up with some of these names. I think they do it deliberately to confuse patients.