Lilasmom,

I am not a doctor but I might be able to help with a couple of the things.
Annular tears, also known as annular fissures are very basically, the center of a disc's jelly like substance leaks or tears into the outportion of the disc the annular. Nerves are in the annular so if the jelly hits those nerves(not always depends where it tears) it can be very very painful.
Disc protrusion is a type of bulging disc. The disc breaks down and loses its natural shape usually protruding or spreading (diffused). When it does it can put pressure on nerves or the spinal cord. If it doesnt no pain and reason to worry about it.
I do not have any knowledge of hemangioma other than it is some type of benign tumor.

Hopefully that helps a little.
Rhonda