Differential Diagnosis of Vasculitis and Vasculopathy from a Dermatological Point of View

Vasculopathies and vasculitides pose an interdisciplinary challenge in terms of diagnosis and therapy. They are based on different pathophysiological mechanisms that can lead to clinical symptoms and allow different therapeutic approaches. Neither vasculitides nor vasculopathies have necessarily to be associated with systemic involvement, but can also occur as purely cutaneous variants. Due to the lack of pathognomonic laboratory parameters, the diagnosis is often clinical. This article is intended to focus on the differential diagnostic view, particularly in the case of cutaneous manifestations of vasculitis and vasculopathies.