Papillary thyroid cancer MRI: Difference between revisions
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{{CMG}}; {{AE}} {{Ammu}} | {{CMG}}; {{AE}} {{Ammu}} | ||
==Overview== | ==Overview== | ||
==Key CT or MRI Findings in | ==Key CT or MRI Findings in Papillary thyroid cancer== | ||
* MRI, although probably more sensitive that CT, is nonetheless still far from perfect with a sensitivity of only 67% 2. This is largely a result of the fact that as many as half involved nodes found histologically following surgery, being less than 3 mm in diameter 2. | * MRI, although probably more sensitive that CT, is nonetheless still far from perfect with a sensitivity of only 67% 2. This is largely a result of the fact that as many as half involved nodes found histologically following surgery, being less than 3 mm in diameter 2. | ||
* As discussed above, nodes have a tendency to become cystic. The cystic component will have near-fluid attenuation. The solid metastatic component will appear 2: | * As discussed above, nodes have a tendency to become cystic. The cystic component will have near-fluid attenuation. The solid metastatic component will appear 2: | ||
| Line 15: | Line 15: | ||
:* Hyperintense: 21% | :* Hyperintense: 21% | ||
==CT or MRI Examples of | ==CT or MRI Examples of Papillary thyroid cancer== | ||
==References== | ==References== | ||
Revision as of 21:33, 4 November 2015
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Papillary thyroid cancer Microchapters |
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Differentiating Papillary thyroid cancer from other Diseases |
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Diagnosis |
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Treatment |
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Case Studies |
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Papillary thyroid cancer MRI On the Web |
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American Roentgen Ray Society Images of Papillary thyroid cancer MRI |
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Risk calculators and risk factors for Papillary thyroid cancer MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ammu Susheela, M.D. [2]
Overview
Key CT or MRI Findings in Papillary thyroid cancer
- MRI, although probably more sensitive that CT, is nonetheless still far from perfect with a sensitivity of only 67% 2. This is largely a result of the fact that as many as half involved nodes found histologically following surgery, being less than 3 mm in diameter 2.
- As discussed above, nodes have a tendency to become cystic. The cystic component will have near-fluid attenuation. The solid metastatic component will appear 2:
- General signal characteristics include:
- T1
- hypointense cf. muscle
- enhancement best seen with fat suppression
- T2: variable 2
- Hypointense: 34%
- Isointense: 45%
- Hyperintense: 21%