The phrase "any digression" is correct and can be used in written English.
It means a deviation from the main topic or subject being discussed. Example: "The speaker was very clear and concise, avoiding any digressions in his presentation."
Soon I had established a private ideal of how phones ought to be arranged, any digression from which -- a Princess phone, say, in a kitchen -- caused me real distress.
His frequent allusions to classical and Biblical myth, his learned excursions into British naval history decorate but do not divert the tale; like Faulkner at his most surging, he seems confident that the underlying story is simple and predetermined enough to survive any digression.
Matching up across the width of the paper is controlled by cells that react to any lateral digressions as the paper moves along by controlling a lateral-shifting mechanism.
How can we fix this? —Martha, Buffalo, NY A. If you would, Martha, let me start with a digression that isn't intended to make any less of your situation: Difficulties with the in-laws!
But this is a digression.
The thought sets off a digression.
Anyway, that's a digression from a digression, which is good going for paragraph one.
After a digression about a washed-up but popular bullfighter, Hemingway writes: "Well none of that has anything to do with the story and I suppose you think there isn't any story anyway but it sort of moves along in time and anyway there is a lot of dope about high society in it and that is always interesting".
Les Misérables begins with a digression from a digression (thus resembling Gustave Flaubert's Madame Bovary, which a few years earlier had begun with a digression, too).
At this point, we must make a digression.
