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Dear Editor, Various cutaneous manifestations have been described throughout the COVID-19 pandemic, many of which are common to other viral infections (Fig. 1a). 1 Granuloma annulare (GA) can be triggered by several causes, such as diabetes mellitus, trauma, medications, vaccinations or viral infections. Different viruses have been identified as triggers, such as the Epstein-Barr virus (EBV), HIV and hepatitis B and C. 2

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

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