ABSTRACT
Purpose or Learning Objective: Due to the COVID-19 pandemic, people all over the world have been vaccinated. Among the huge benefits of the vaccines, the risk of thrombosis in both young and older people is rarely present. This case report describes an incidentally diagnosed thrombosis of the persistent median artery in the wrist shortly after the patient received a second dose of the Comirnaty vaccine. Methods or Background: A 34-year-old woman presented with pain in the right wrist and numbness in her fingers. Ultrasonography (US) and neurography were performed for diagnostic purposes. Results or Findings: Neurography of the median nerve was within the normal range. Doppler US detected a 15-mm-long area of median artery thrombosis. There were no signs of median nerve pathology on US. Due to a good collateral system distally, the blood flow was not affected. Hemostatic and an autoantibody blood test were checked. The antinuclear antibody immunoglobulin G (ANA IgG) was elevated, but no signs of thrombocytosis were detected. Conclusion: It is very important to remember possible vessel problems and thrombosis in patients with joint pain, especially if the patient has received the COVID-19 vaccine or recovered recently from a disease.