Vasculitis refers to inflammation of vessels including
arteries and veins that contain blood and blood contains the inflammatory cells
including white blood cells e.g. Neutrophil granulocytes, eosinophil,
basophils and mast cells. White blood cells contain granules (sac) contain
toxic substances and digestive enzymes in order to eliminate harmful stimuli.
Now question is what is inflammation?
Inflammation is the
complex biological response of the vascular tissues to harmful stimuli, such as
pathogen, damaged cells, and irritant or a protective immunovascular response
in order to eliminate the initial cause of cell injury and to initiate the
tissue repair. It is considered as innate immunity, compared to adaptive
immunity that is specific for each pathogen to eliminate.
