Sesame seed stuck in scent gland?

[Vierville]

Nanuk, my 18 month old male winter white dwarf hybrid has always had a prominent scent gland, but this evening while giving him his weekly health check, I noticed that his scent gland seems just a little bit bigger than usual and I found what looks exactly like a sesame seed embedded in the scent gland.

He does occasionally get sesame seeds as a treat so it is not impossible as he has access to them but can it really be a sesame seed in there or could it be a part of his gland that I've never noticed?

There is a bit of green/greyish waxy buildup around the scent gland but that is usually there.

I'm going to take him to the vet in the morning just to check it but has anyone else seen anything like it before?

I couldn't get a photo as he is too squirmy.