Anaplastic thyroid cancer other imaging findings: Difference between revisions
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==Overview== | ==Overview== | ||
[[PET]] may be helpful in the diagnosis of anaplastic thyroid cancer. [[PET]] may also be performed to detect [[metastases]] of anaplastic thyroid cancer to [[brain]] and [[bone|bones]].<ref> Thyroid Cancer Canadian Cancer Society (2015). http://www.cancer.ca/en/cancer-information/cancer-type/thyroid/diagnosis/?region=sk- Accessed on November, 19 2015</ref> | |||
==Key PET Findings in Anaplastic thyroid cancer== | ==Key PET Findings in Anaplastic thyroid cancer== | ||
A PET scan uses radioactive materials (radiopharmaceuticals) to detect changes in the metabolic activity of body | * A [[PET]] scan uses radioactive materials (radiopharmaceuticals) to detect changes in the metabolic activity of [[body tissue]] and help find areas of active cancer cells. A computer analyzes the radioactive patterns and makes 3-dimensional color images of the area being scanned. It may be used to: | ||
:* Help find the [[cancer]] or see if it has recurred if other tests are negative | |||
:* Help find metastatic spread in people whose [[thyroid cancer]] does not take up the [[radioactive iodine]] used in [[CT scan]] | |||
* [[PET scan]] are expensive to perform and may not be as readily available as other imaging tests in certain centres. | |||
==Key PET Findings in Anaplastic thyroid cancer== | ==Key PET Findings in Anaplastic thyroid cancer== | ||
A bone scan uses radioactive materials (radiopharmaceuticals) that will gather in the bones and a computer to create a picture of the bones. It may be used to see if the thyroid cancer has spread to the bones. | * A [[bone scan]] uses radioactive materials (radiopharmaceuticals) that will gather in the [[bone|bones]] and a computer to create a picture of the [[bone|bones]]. It may be used to see if the [[thyroid cancer]] has spread to the [[bone|bones]]. | ||
==Key Radioactive iodine scan Findings in Anaplastic thyroid cancer== | ==Key Radioactive iodine scan Findings in Anaplastic thyroid cancer== | ||
A radioactive iodine scan is also called a radionuclide scan or radioisotope scan. When it is used to examine the thyroid gland, it may be called a thyroid scan. A radioactive iodine scan uses a radioactive material (called an isotope) to highlight the structure of an organ. The radiation given off from the isotope is picked up by a scanning device to form a picture of the organ. | * A radioactive iodine scan is also called a radionuclide scan or radioisotope scan. When it is used to examine the thyroid gland, it may be called a thyroid scan. A radioactive iodine scan uses a radioactive material (called an isotope) to highlight the structure of an organ. The radiation given off from the isotope is picked up by a scanning device to form a picture of the organ. | ||
* Radioactive iodine is the isotope used to detect nodules in the [[thyroid]]. These nodules are described as cold or hot nodules. | |||
Radioactive iodine is the isotope used to detect nodules in the thyroid. These nodules are described as cold or hot nodules. | * Cold nodules absorb less radioactive iodine than the surrounding thyroid tissue. They may also be called hypofunctioning nodules. Most cold nodules are benign, although some may be cancerous. | ||
* Warm or hot nodules absorb more radioactive iodine than the surrounding thyroid tissue. They may also be called hyperfunctioning nodules. Hot nodules are usually benign. | |||
==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} | ||
Latest revision as of 18:55, 30 November 2015
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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
PET may be helpful in the diagnosis of anaplastic thyroid cancer. PET may also be performed to detect metastases of anaplastic thyroid cancer to brain and bones.[1]
Key PET Findings in Anaplastic thyroid cancer
- A PET scan uses radioactive materials (radiopharmaceuticals) to detect changes in the metabolic activity of body tissue and help find areas of active cancer cells. A computer analyzes the radioactive patterns and makes 3-dimensional color images of the area being scanned. It may be used to:
- Help find the cancer or see if it has recurred if other tests are negative
- Help find metastatic spread in people whose thyroid cancer does not take up the radioactive iodine used in CT scan
- PET scan are expensive to perform and may not be as readily available as other imaging tests in certain centres.
Key PET Findings in Anaplastic thyroid cancer
- A bone scan uses radioactive materials (radiopharmaceuticals) that will gather in the bones and a computer to create a picture of the bones. It may be used to see if the thyroid cancer has spread to the bones.
Key Radioactive iodine scan Findings in Anaplastic thyroid cancer
- A radioactive iodine scan is also called a radionuclide scan or radioisotope scan. When it is used to examine the thyroid gland, it may be called a thyroid scan. A radioactive iodine scan uses a radioactive material (called an isotope) to highlight the structure of an organ. The radiation given off from the isotope is picked up by a scanning device to form a picture of the organ.
- Radioactive iodine is the isotope used to detect nodules in the thyroid. These nodules are described as cold or hot nodules.
- Cold nodules absorb less radioactive iodine than the surrounding thyroid tissue. They may also be called hypofunctioning nodules. Most cold nodules are benign, although some may be cancerous.
- Warm or hot nodules absorb more radioactive iodine than the surrounding thyroid tissue. They may also be called hyperfunctioning nodules. Hot nodules are usually benign.
References
- ↑ Thyroid Cancer Canadian Cancer Society (2015). http://www.cancer.ca/en/cancer-information/cancer-type/thyroid/diagnosis/?region=sk- Accessed on November, 19 2015