De Quervain subacute thyroiditis

De Quervain subacute granulomatous thyroiditis, the commonest cause of thyroidal pain, can result from viral infection, including COVID-19. Diagnosed clinically by history, examination and blood tests, it is usually self-limiting. The classic triphasic pattern starts with an initial thyrotoxicosis lasting 3-6 weeks when preformed thyroid hormones are released due to thyroid-cellular destruction. An intermediate hypothyroid phase of up to 6 months follows, because thyroid hormone stores are depleted. Of patients with the condition, 85%-95% return to their baseline thyroid functioning within 12 months. Here, Mundy-Baird et al examine the case of a 41-year-old woman with subacute thyroiditis.