Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Case Reports
. 1978 Jul;71(7):860-2.
doi: 10.1097/00007611-197807000-00033.

Myxedema coma and normal serum thyroxine

G Lizarralde, J G Baldwin, H G McCulley Jr, R M Packer 3rd
Case Reports

Myxedema coma and normal serum thyroxine

G Lizarralde et al. South Med J. 1978 Jul.

Abstract

A 76-year-old man who developed the clinical syndrome of myxedema coma was found to have a normal serum thyroxine concentration. Further investigation revealed the presence of a low serum T3 level before and after sodium levothyroxine therapy when the serum T4 value was in the hyperthyroid range. In addition, he demonstrated an inability to release TSH after intravenous administration of TRH and was found to have an enlarged sella turcica. A partial defect in peripheral conversion of T4 to T3 is postulated.

PubMed Disclaimer

Publication types

LinkOut - more resources