Limiting the research to the new described CV, we only found one study in the English literature that was aimed to further investigate the clinical and immunopathologic features of cutaneous IgM/IgG immune complex vasculitis (8) Its main goal was to elucidate the clinical differences between IgM/IgG vasculitis and the more common skin-limited IgA vasculitis (sI-IgAV), thus proposing practical advice for the everyday medical practice. This evidence concerns the gene CD40LG and vasculitis.