What is that !!!

I know it's an old Question but have you find out about tree burl? It is a natural deformation of the grain happening in trees.

Looks more like a tumor, or a malformation of a bottom sprout(if thats what its called). But i literally have no idea what this is in fact, but i'm curious.

Freakiest thing I have ever seen, but it is definitely not a seed, seeds can only grow inside a female calyx. Let's just call it "a weird growth".

Looks like your girls grew a tumour. Just like we get skin tags and stuff. No worries my friend. Unless its cancerous, but you already operated so let's see if your a life saver. Lol Cheers friend