Apatjetoc thyrotoxicosis secondary to atypical subacute thyroiditis

Alessia L. Carluccio, Nina K. Sundaram, Robert Yanagisawa, Yaron T. Tomer

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Objective: To report a case of apathetic thyrotoxicosis with an etiology of subacute thyroiditis.Methods: We describe the patient's clinical findings, laboratory findings, and clinical course.Results: An 85-year-old woman with no history of thyroid disease presented with severe obtundation and altered mental status. Laboratory testing documented elevated free thyroxine and free triiodothyronine concentrations and a suppressed thyrotropin concentration. Thyroid antibodies were absent. A radioactive iodine study revealed severely diminished uptake, suggestive of thyroiditis. After a short course of steroids, the patient's mental status returned to baseline. Follow-up laboratory testing showed normalizing thyroid function.Conclusion: Even in the absence of a history of thyroid disease, we recommend considering thyroid dysfunction in the differential diagnosis of patients who present with altered mental status, particularly in the elderly population.

Original languageEnglish (US)
Pages (from-to)e127-e129
JournalEndocrine Practice
Issue number5
StatePublished - Sep 1 2012
Externally publishedYes

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism
  • Endocrinology


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