Lymphocytic thyroiditis; Subacute lymphocytic thyroiditis; Painless thyroiditis; Thyroiditis – silent
Definition of Silent thyroiditis
Silent thyroiditis is swelling (inflammation) of the thyroid gland, in which the person alternates between and .
Causes, incidence, and risk factors
The cause of this type of thyroiditis is unknown. The disease affects women more often than men.
The earliest symptoms result from an overactive thyroid gland (hyperthyroidism). These symptoms may last for 3 months or fewer. Later symptoms may be of an underactive thyroid (including fatigue and cold intolerance) until the thyroid recovers.
Signs and tests
A physical examination may show:
Treatment is based on symptoms. Beta-blockers relieve rapid heart rate and excessive sweating.
Generally, silent thyroiditis will go away on its own within 1 year. The acute phase will end within 3 months.
Ari S. Eckman, MD, Division of Endocrinology and Metabolism, Johns Hopkins School of Medicine, Baltimore, MD. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc. – 4/19/2010