These are things I've researched out:

http://vasculitis.med.jhu.edu/typesof/rheumatoid.html (from Johns Hopkin Univ.)
and another of my favorites: http://www.neuro.wustl.edu/neuromusc...tml#vasculitis

http://www.vgrd.org/archive/cases/20...tis%20text.htm

here is a tutorial about vasculitis: http://www.nlm.nih.gov/medlineplus/t...htm/lesson.htm

Behcet's syndrome vasculitis: http://www.nlm.nih.gov/medlineplus/t...htm/lesson.htm

Hope these help in some way.

Billye