COVID‐19 vaccine‐induced vasculitis in a patient with sarcoidosis: A case report

A 55‐year‐old lady with a nine‐year history of controlled sarcoidosis developed vasculitis after Sinopharm COVID‐19 vaccine (BBIBP‐ CorV). She was ultimately diagnosed with mononeuritis multiplex based on EMG‐NCV findings and administered methylprednisolone and cyclophosphamide pulse therapy for 5 days, and then continue with prednisolone and a monthly pulse of cyclophosphamide. Vaccination, as a factor alone or in combination with disease agents, can cause new or aggravate pre‐existing symptoms, such as vasculitis among sarcoidosis patients.