The Value of Technetium Tc 99m Pertechnetate Thyroid Scanning in the Diagnosis of Factitious Thyrotoxicosis

H. Abdel-Nabi, MD; James M. Falko, FACP; John Olsen, MD
Arch Intern Med. 1982;142(3):644-645. doi:10.1001/archinte.1982.00340160224045.
Text Size: A A A
Published online

To the Editor.  —Hyperthyroidism with poor or no radioactive iodine 123 uptake on thyroid scanning may be found with subacute thyroiditis, silent thyroiditis, or factitious thyrotoxicosis.1-5 Factitious thyrotoxicosis can usually be confirmed by the administration of thyrotrophin (thyroid-stimulating hormone) showing thyroid gland incorporation of radioactive iodine 123. We recently encountered a patient who had factitious thyrotoxicosis in whom a technetium Tc 99m pertechnetate thyroid scan helped to establish the diagnosis.

Report of a Case.  —An 18-year-old woman was referred to the Ohio State University Hospitals, Columbus, because she suffered from self-induced vomiting, amenorrhea, and anorexia nervosa of three months' duration. On physical examination, she weighed 39.6 kg, and her pulse rate was 60 beats per minute. There was no goiter, and she was clinically euthyroid despite a serum total thyroxine level of 22 μg/dL and an elevated free thyroxine index that was repeated on several occasions. The thyroid-stimulating


Sign In to Access Full Content

Don't have Access?

Register and get free email Table of Contents alerts, saved searches, PowerPoint downloads, CME quizzes, and more

Subscribe for full-text access to content from 1998 forward and a host of useful features

Activate your current subscription (AMA members and current subscribers)

Purchase Online Access to this article for 24 hours

First Page Preview

View Large
First page PDF preview





Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).
Submit a Comment


Some tools below are only available to our subscribers or users with an online account.

Sign In to Access Full Content

Related Content

Customize your page view by dragging & repositioning the boxes below.