This is a quote from "The Secret Life of Walter Mitty", and it is a made-up term. He is not a skilled surgeon, so he made up the term obstreosis (a word that does not even exist), duct is like a passage, the same way as tract. So this "disease" makes no sense and does not exist.
I dont really know but is it bricklayers?
Okay, so each album has 30 + 16 stickers, which is 46.
And since there are four albums, 46 * 4 = 184.
So Carin has 184 stickers in all.
