Endocrinol Metab.  2012 Jun;27(2):147-150. 10.3803/EnM.2012.27.2.147.

A Case of Painless Thyroiditis Followed by Graves' Disease

  • 1Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan, Korea. yeojoo@schmc.ac.kr


A 30-year-old man was admitted to our hospital because of fatigue, palpitation and severe weakness of both legs. The admission laboratory findings revealed thyrotoxicosis, and 131I thyroid scintigraphic imaging revealed a low radioactive iodine uptake. He was treated for painless thyroiditis for about 4 months. However, thyrotoxic state had continued and radioactive iodine uptake was markedly increased in the follow up scan. Painless thyroiditis often relapses, but rarely develops into Graves' disease. This is a rare case in which painless thyroiditis was followed by Graves' disease.


Graves disease; Thyroiditis; Thyrotoxicosis
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