Which of the following is a 'Small Vessel Vasculitis':
Polyaeritis Nodosa (PAN)
Microscopic polyangitis
Giant cell vasculitis
Takayasu's Disease
Answer is B (Microscopic polyangitis): Miscroscopic Polyangitis (Microscopic Polyaeritis) is classified as 'Small Vessel Vasulitis' Polyaeritis Nodosa (PAN) is classified as 'Medium Vessel' vasculitis, while, Giant cell vasculitis(Temporal) and Takayasu disease are both classified as 'Large Vessel' vasculitides.