Bald cypress - possible incipient knee?

For those of you with experience with bald cypress and in particular, cypress knees. I unpotted my bald cypress to work on the roots this week, and found an interesting knobby growth on the root system. A couple of pictures are below. Second one is blurry, sorry about that. Anyway, this single growth looks rather different than all other root growth I've seen, somewhat different surface texture and no fine roots emanating from it. Shaped kind of like a tulip or daffodil bulb with a distinct pointed end. Wondering if it might be the early stages of a knee forming.

Some background...obtained the tree as a seedling about 10 years ago, planted in the ground (regular garden soil, not wet). Dug up once or twice to work on the roots during the 10 or so years it was in the ground. Dug up and potted 2 years ago. Don't remember noticing this growth at that time. First summer I grew it as a "normal" tree, but last summer I sat it in a container of water for much of the summer, not very deep but enough to keep the root system pretty wet.

Will certainly keep an eye on this. Depending on how the tree does this year, next repotting might be next year or more likely, 2026.

@johng ... what do you think?

It might be, it also might be a callus from previous root pruning. Knees typically develop on the top of a sharply descending root at the top surface. Since this growth seems to be under the primary root mass, hmmm.

I am pretty sure that knees on bald cypress do not form outside of anaerobic conditions. This generally requires rootbound soil submerged in water. I had a long conversation about it with a botanist at the Huntington gardens in their bog room... with bald cypress growing knees all over the place.