Silent thyroiditis
Silent thyroiditis is swelling (inflammation) of the thyroid gland, in which the person alternates between hyperthyroidism
and hypothyroidism
.
Alternative Names
Lymphocytic thyroiditis; Subacute lymphocytic thyroiditis; Painless thyroiditis; Thyroiditis - silent
Causes, incidence, and risk factors
The cause of this type of thyroiditis
is unknown. The disease affects women more often than men.
Symptoms
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.
Symptoms are usually mild and may include:
Signs and tests
A physical examination
may show:
-
Enlarged thyroid gland
-
Rapid heart rate
-
Shaking hands
Tests may show:
Treatment
Treatment is based on symptoms. Beta-blockers relieve rapid heart rate and excessive sweating.
Expectations (prognosis)
Generally, silent thyroiditis will go away on its own within 1 year. The acute
phase will end within 3 months.
Some people may develop hypothyroidism over time. Regular follow-ups with a doctor are recommended.
Calling your health care provider
Call your health care provider if you have symptoms of this condition.
References
AACE Thyroid Task Force. American Association of Clinical Endocrinologists medical guidelines for clinical practice for the evaluation and treatment of hyperthyroidism and hypothyroidism. Endocr Pract. 2002;8:457-469.
Ladenson P, Kim M. Thyroid. In: Goldman L and Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders; 2007:chap 244.
Brent GA, Larsen PR, Davies TF. Hypothyroidism and thyroiditis. In: Kronenberg HM, Melmed S, Polonsky KS, Larsen PR, eds. Williams Textbook of Endocrinology. 11th ed. Philadelphia, Pa: Saunders Elsevier; 2008:chap 12.
Updated: 6/4/2012
Shehzad Topiwala, MD, Chief Consultant Endocrinologist, Premier Medical Associates, The Villages, FL. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.