**3. Cutaneous vasculitis**

Cutaneous vasculitis may affect vessels of different calibers, especially small and medium in the skin and the subcutaneous tissue, resulting in just a small cutaneous lesion until serious systemic commitment. Nevertheless, the classification is not a consensus. In general, they are classified using clinical criteria, size of the vessels, histopathological exams, laboratorial findings and etiologic agents [3, 4]. In 2012, the *Chapel Hill Consensus Conference (CHCC)* proposed a new classification from the most used since 1994, removing many eponymous. The classification is a strategic pillar to help choose the right path to lead these patients through the right treatment [4, 5] (**Table 1**).
