Livedo reticularis and acrocyanosis as late manifestations of COVID-19 in two cases with familial aggregation. Potential pathogenic role of complement (C4c) Dear Editor, Livedo or necrotic-type manifest different levels of occlusive vascular disease and are more frequent in patients of advanced age and severe COVID-19. 1 However, transient manifestations, such as livedo reticularis, have been described in
Skin manifestations of SARS-CoV-2 infection have recently been a major topic in dermatology, and more lesion patterns are being described as time goes by and knowledge of this entity increases. 1 Papular acrodermatitis of childhood (PAC) is a well-defined reactive dermatosis that usually sets during childhood, and is presumably caused by a virus-induced immune response. Epstein-Barr and hepatitis B
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