It is the end stage finding of a neutrophillic mediated vasculitis. There is a range of istopathologic presentation, from a fully developed vasculitis with fibrinoid necrosis and lymphocyte. Skin biopsies representing lymphoitic vasculitis can be classified by the vessels involved.
Related journal of Lymphocytic vasculitis
Journal of Vasculitis, Journal of Vascular Medicine & Surgery, Air & Water Borne Diseases, Journal of Vascular Medicine & Surgery, Journal of Pulmonary & Respiratory Medicine, Chronic Obstructive Pulmonary Disease: Open access, Pulmonary Medicine.