Thyroid adenoma other imaging findings: Difference between revisions
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{{CMG}}; {{AE}} {{Ammu}} | {{CMG}}; {{AE}} {{Ammu}} | ||
==Overview== | ==Overview== | ||
Thyroid scan may be helpful in the diagnosis of thyroid adenoma. Findings on thyroid scan suggestive of thyroid adenoma include hot and functioning nodule. | |||
==Other Imaging Findings== | ==Other Imaging Findings== | ||
===Thyroid Scan (radioiodine scintigraphy)=== | ===Thyroid Scan (radioiodine scintigraphy)=== | ||
* Nuclear medicine can be used to image the thyroid with radioactive [[technetium]] (Tc) or [[iodine]] (I) [[scintigraphy|imaging]] of the thyroid.<ref>{{MedlinePlusEncyclopedia|003829|Thyroid scan}}</ref> | * Nuclear medicine can be used to image the thyroid with radioactive [[technetium]] (Tc) or [[iodine]] (I) [[scintigraphy|imaging]] of the thyroid.<ref>{{MedlinePlusEncyclopedia|003829|Thyroid scan}}</ref> | ||
====Key Findings in Radioiodine Scintigraphy in Thyroid Adenoma==== | ====Key Findings in Radioiodine Scintigraphy in Thyroid Adenoma==== | ||
* Cold – 85% of nodules are cold. 5–8% of cold and warm nodules are malignant.<ref>{{cite journal |last1=Gates |first1=Jeremy D. |last2=Benavides |first2=Linda C. |last3=Shriver |first3=Craig D. |last4=Peoples |first4=George E. |last5=Stojadinovic |first5=Alexander |title=Preoperative Thyroid Ultrasound In All Patients Undergoing Parathyroidectomy? |journal=Journal of Surgical Research |volume=155 |issue=2 |pages=254–60 |year=2009 |pmid=19482296 |doi=10.1016/j.jss.2008.09.012 }}</ref> | * Cold – 85% of nodules are cold. 5–8% of cold and warm nodules are malignant.<ref>{{cite journal |last1=Gates |first1=Jeremy D. |last2=Benavides |first2=Linda C. |last3=Shriver |first3=Craig D. |last4=Peoples |first4=George E. |last5=Stojadinovic |first5=Alexander |title=Preoperative Thyroid Ultrasound In All Patients Undergoing Parathyroidectomy? |journal=Journal of Surgical Research |volume=155 |issue=2 |pages=254–60 |year=2009 |pmid=19482296 |doi=10.1016/j.jss.2008.09.012 }}</ref> | ||
* Functioning nodules – The cells in the nodule take up the iodine much like a normal cell does. The likelihood of cancer is very low in these types of nodules, and a biopsy is usually not necessary. | * Functioning nodules – The cells in the nodule take up the iodine much like a normal cell does. The likelihood of cancer is very low in these types of nodules, and a biopsy is usually not necessary. | ||
* Hot – 5% of nodules are hot. Malignancy is virtually nonexistent in hot nodules.<ref>Robbins pathology 8ed page 767</ref> | * Hot – 5% of nodules are hot. Malignancy is virtually nonexistent in hot nodules.<ref>Robbins pathology 8ed page 767</ref> | ||
* An <sup>123</sup>I scan showing a hot nodule, accompanied by a lower than normal TSH, is strong evidence that the nodule is not cancerous. | * An <sup>123</sup>I scan showing a hot nodule, accompanied by a lower than normal TSH, is strong evidence that the nodule is not cancerous. | ||
====Key Examples of Radioiodine Scintigraphy in Thyroid Adenoma==== | ====Key Examples of Radioiodine Scintigraphy in Thyroid Adenoma==== | ||
[[File:Thyroid scan.jpg|thumb|center|400 px|Comet tail artifacts from colloid. Medical ultrasound image.<SMALL><SMALL>''[http://www.wikipedia.org''<ref name="Wikipedia">{{Cite web | title = Wikipedia thyroid ultrasound| url = https://en.wikipedia.org/wiki/Thyroid_nodule#/media/File:Ultrasound_Scan_ND_0124141638_1428320.png}}</ref></SMALL></SMALL>]] | [[File:Thyroid scan.jpg|thumb|center|400 px|Comet tail artifacts from colloid. Medical ultrasound image.<SMALL><SMALL>''[http://www.wikipedia.org''<ref name="Wikipedia">{{Cite web | title = Wikipedia thyroid ultrasound| url = https://en.wikipedia.org/wiki/Thyroid_nodule#/media/File:Ultrasound_Scan_ND_0124141638_1428320.png}}</ref></SMALL></SMALL>]] | ||
Revision as of 11:14, 12 October 2015
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Thyroid adenoma other imaging findings On the Web |
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Risk calculators and risk factors for Thyroid adenoma other imaging findings |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ammu Susheela, M.D. [2]
Overview
Thyroid scan may be helpful in the diagnosis of thyroid adenoma. Findings on thyroid scan suggestive of thyroid adenoma include hot and functioning nodule.
Other Imaging Findings
Thyroid Scan (radioiodine scintigraphy)
- Nuclear medicine can be used to image the thyroid with radioactive technetium (Tc) or iodine (I) imaging of the thyroid.[1]
Key Findings in Radioiodine Scintigraphy in Thyroid Adenoma
- Cold – 85% of nodules are cold. 5–8% of cold and warm nodules are malignant.[2]
- Functioning nodules – The cells in the nodule take up the iodine much like a normal cell does. The likelihood of cancer is very low in these types of nodules, and a biopsy is usually not necessary.
- Hot – 5% of nodules are hot. Malignancy is virtually nonexistent in hot nodules.[3]
- An 123I scan showing a hot nodule, accompanied by a lower than normal TSH, is strong evidence that the nodule is not cancerous.
Key Examples of Radioiodine Scintigraphy in Thyroid Adenoma
References
- ↑ MedlinePlus Encyclopedia Thyroid scan
- ↑ Gates, Jeremy D.; Benavides, Linda C.; Shriver, Craig D.; Peoples, George E.; Stojadinovic, Alexander (2009). "Preoperative Thyroid Ultrasound In All Patients Undergoing Parathyroidectomy?". Journal of Surgical Research. 155 (2): 254–60. doi:10.1016/j.jss.2008.09.012. PMID 19482296.
- ↑ Robbins pathology 8ed page 767
- ↑ "Wikipedia thyroid ultrasound".
