Betta with possible tumor/growth

[Mario V.]

Hey everyone, so I noticed today that my betta has some sort of growth near its dorsal fin. As the pictures show the growth is very round and white, it does not look fuzzy. I think it is some sort of growth or tumor but I am not 100% sure. My water parameters are pH 6.5, KH 0 ppm, GH 200 ppm, Nitrite 0 ppm, Nitrate 10 ppm, Ammonia 0 ppm, Temp 80 F. The tank has been up and running for about 4 months now. Any help identifying the issue and possible solutions would be great thank you! 

[Cory]

Reducing stress has been the only thing I've seen that can help reduce the size. Do you have any other pictures from say the side to get a better look at it?

[Mario V.]

I was able to take these today from what I can see it looks like it is coming from between the scales. He is still swimming around fine and eating.

[FriendlyLoach]

I had a betta with at tumor. Not quite like that one, but I had a fish vet come out and she said that since it was not going to grow over their eyes, mouth, of gills and so it was not going to affect their life. The vet did not remove it because it was attached to muscle underneath the skin. My fish died of age before it grew over his gill. the one thing to look out for is it may be a zoonotic fish diseases (it can transfer to humans). The way the vet tested if it was a zoonotic fish diseases was by pricking the tumor with a needle. If pus came out it meant that it was a zoonotic fish diseases. I am not an expert, but to just play it safe, wash your hands after putting your hands in the tank and don't put your hands in the tank if you have a cut.