Description
A 50-year-old woman attended our emergency department with a 3-day history of severe back pain and a severe headache. 10 days earlier she had received the first dose of vaccine against SARS-CoV-2—ChAdOx1 nCoV-19 (AstraZeneca). The patient had no significant medical history—specifically no personal or family history of venous thromboembolism. She was not pregnant, she did not take an oral contraceptive, and did not have a hormone-eluting intrauterine device in situ.