HIV infection and clinical spectrum of associated vasculitides.

Various infections have been causative in the pathogenesis of systemic vasculitides, and HIV infection is not spared. In an immunocompromised host, cytomegalovirus, Epstein-Barr virus, varicella zoster virus, herpes simplex virus, hepatitis B and hepatitis C virus, and mycobacteria, along with HIV infection can cause vasculitis. Herein we emphasize the spectrum of vasculitides, their pathogenesis, presentation, course, and therapy in the HIV-infected population. Every spectrum and size of the blood vessel involvement have been seen in HIV-associated vasculitides. We review each spectrum in detail and describe our experience with polyarteritis nodosa, the most common presentation occurring in HIV-infected patients. We also discuss the differences in HIV, hepatitis B, and hepatitis C- related polyarteritis nodosa in detail.