I’m sorry I don’t have an answer to this, but I have pretty much the exact same problem. I’ve had one of these for years now and it’s never caused any bother, just it would be nice to get it removed. Good luck finding out what it is. I’d like to know too!
Hi,
A clinical examination is very important for correct diagnosis and management. It is possible that this lump is a bump of extra bone called torus palatinus.It is a lump of bone which grows on roof of mouth. It is usually painless and may not need treatment unless it is very big. Another possibility is that it could be a mucocoele.A mucocoele is caused by blocked salivary glands and appears clear or as a blue tinged growth. Tooth abscess can cause painful bump on the roof of mouth. Treatment will depend on the underlying cause. See a doctor and get it examined.I will recommend you to see an oral surgeon for a confirmation of the diagnosis. Do keep me posted.
Best luck and regards!