VASCULITIS
Viral (e.g. Hepatitis B and C)
Autoimmune (Systemic Lupus Erythematosus, Sjögren's syndrome, rheumatoid arthritis)
Streptococci, Staphylococci, Henoch-Schönlein purpura
Cryoglobulins, Cryofibrinogens, Churg Strauss/Wegener's granulomatosis
Ulcerative colitis, urticarial vasculitis
Lymphoproliferative disease (hairy cell leukemia)
Infectious (endocarditis, meningococcemia, gonococcemia, Rocky Mountain spotted fever)
Thiazides, phenothiazines, and other drugs
Immune complex reactions, iodides, idiopathic
Sulfa drugs (septra), penicillin, and other antibiotics