Schamberg's disease is one of a group of pigmented purpura diseases. We report a 43‐year‐old woman, who developed Schamberg’s disease after SARS‐CoV‐2 vaccination. Three days after vaccination, a purpuric eruption occurred on the lower extremities, extending to the buttocks, and subsided in 4 weeks. No recurrence was observed thereafter. It is suggested that the vaccination triggered the development of the eruption, which was not merely coincidental. SARS‐CoV‐2 vaccination may stimulate a certain population of T cells, resulting in the development of pigmented purpuric dermatoses.
We report a case of IgA vasculitis that occurred 1 week after COVID‐19 vaccination. Like influenza vaccine, SARS‐CoV‐2 vaccine is considered to have a potential to produce immune complexes with IgA. Given that patients with a history of IgA vasculitis may be flared up following SARS‐CoV‐2 vaccination, individuals with a history of IgA vasculitis should be carefully followed up after receiving the vaccine.
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