What Disease Attacks Organs And Joints?

This sounds like an autoimmune disease. It could be systemic lupus erythematosis.

There are very few, if any diseases which are absolutely untreatable. Incurable yes, untreatable no. I hope your friend is not being denied help.

I have to wonder - why don't you just ask the doctor what it is called? Then you could research for a help-group for that illness.