Subacute thyroiditis usually recovers completely, and recurrences are
unfrequent. We report hereafter the case of a 70-year-old man with a t
ypical diagnosis of subacute thyroiditis. He reported a similar episod
e 20 years earlier, followed by a mild but persistent hypothyroidism.
This case reminds that recurrence of subacute thyroiditis can occur ev
en after many years.