0
ARTICLE |

Differentiation of Benign and Malignant Thyroid Nodules by Scintiscan

KATSUTARO SHIMAOKA, MD; JOSEPH E. SOKAL, MD
Arch Intern Med. 1964;114(1):36-39. doi:10.1001/archinte.1964.03860070082007.
Text Size: A A A
Published online

Scanning of the thyroid and of extrathyroidal tissues after the administration of a tracer dose of radioactive iodine has proved to be a very useful diagnostic tool in the study of thyroid disease. This technique permits the mapping of functioning and nonfunctioning areas of the thyroid and makes possible the localization of other areas of iodine concentration which may represent ectopic thyroid tissue or metastatic lesions of thyroid cancer. Several authors have reported that scintiscans of the thyroid are useful in the differentiation of benign thyroid nodules from others which may be malignant.1-5 Since thyroid carcinoma rarely, if ever, concentrates iodine as well as normal tissue does, malignant thyroid nodules usually appear as hypofunctioning or nonfunctioning areas in the scintiscan. This has led to the proposal that the scintiscan be used to determine which goiters may be treated medically and which should be extirpated surgically. It has been stated that

Topics

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

Figures

Tables

References

Correspondence

CME
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.
NOTE:
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

Multimedia

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.

Jobs
brightcove.createExperiences();