Diagnosing an old crabapple (fire blight?)

[Trmorty]

Hoping someone can help me diagnose a disease on this old crabapple in my yard:

I suspect fire blight, but haven’t seen anything this extensive searching online. All of the main branches have large areas like this, so I’m considering just taking the whole tree down. I also recently planted a few apple trees nearby and worry about this spreading to them. What do you all think?

Thanks!

[evilpaul]

I’m not sure what to make of it exactly, but it doesn’t look like fire blight to me. I would expect sunken reddish sticky looking cankers in the newer infections from the previous year and blackened areas missing bark/cambium on older ones.