The mucosa is the inner lining of the GI tract, lungs, mouth, etc. Hyperplastic refers to the abnormal proliferation of normal cells within an organ or tissue. But don't think cancer! It relates to hyperplasia, which Wiki explains:en.wikipedia.org/wiki/Hyperplasia
In terms of a Crohn's diagnosis, I don't know the significance however. I would guess that it's a signifier of a "chronic inflammatory response", but I don't actually know
. Deducing something in 10 minutes from a Wiki article isn't the same thing as years of training in interpreting biopsy results.
I don't think you have a partial blockage. Your pain doesn't seem bad enough and also partial blockages tend to either resolve themselves or turn into a full-on obstruction, which nobody could miss. But if you wanted a check, a CT scan would be the way to go.
I don't have a clue about