Thyroid adenoma other imaging findings
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ammu Susheela, M.D. [2]
Overview
Other diagnostic studies for thyroid adenoma include thyroid scan, which demonstrates hot, cold, or 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 thyroid nodules are cold. 5–8% of cold and warm thyroid 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 thyroid nodules are hot. Malignancy is virtually nonexistent in hot nodules.[3]
- An 123I scan showing a hot nodule, accompanied by a lower than normal thyroid stimulating hormone, 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 radioiodine scintigraphy".
