Subacute Thyroiditis and the SARS-Cov-2: What Relationship?

Abstract

Background: De Quervain's thyroiditis is an inflammatory thyroid disorder. The new coronavirus is incriminated as the causative agent. Aims: We describe two cases of subacute thyroiditis, the first is linked to covid-19 infection, and the second is secondary to the SARS-CoV-2 vaccine. Methods: A 48-year-old female, presented with severe anterior neck pain, and thyroid dysfunction; the thyroid ultrasound showed an enlarged gland, with external hypoechoic areas. The RT-PCR was positive, the patient was treated according to the protocol of covid-19. A 49-year-old female, consulted for intense neck pain, one month after receiving the first dose of vaccination (Astrazeneca); the cervical ultrasound showed an external hypoechoic areas. Results: In first case, neck pain and other signs disappeared in one week. In second case, neck pain disappeared within two weeks. Conclusion: Clinicians should be aware of the possibility of thyroiditis in patients infected with Sars-COV-2.