Primary lesion manifest as ''rakta rāji sirā santata utsedavanti'' i.e. vessel are inflamed and are palpable. Systemic vasculitis may affect the skin and vascular damage may be the main feature in several skin diseases. The histological features that are common are:- vessel wall damage , red cell extravasation , invasion of inflammatory cells into vessel walls. | Primary lesion manifest as ''rakta rāji sirā santata utsedavanti'' i.e. vessel are inflamed and are palpable. Systemic vasculitis may affect the skin and vascular damage may be the main feature in several skin diseases. The histological features that are common are:- vessel wall damage , red cell extravasation , invasion of inflammatory cells into vessel walls. |