Thyroid nodule other diagnostic studies: Difference between revisions
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==Overview== | ==Overview== | ||
==Other Diagnostic Studies== | ==Other Diagnostic Studies== | ||
=== Fine needle aspiration === | |||
The most important diagnostic test to differentiate thyroid nodules from each other is fine needle aspiration (FNA). As FNA is considered as an aggressive procedure, the American Thyroid Association developed the following criteria for FNA indication: | The most important diagnostic test to differentiate thyroid nodules from each other is fine needle aspiration (FNA). As FNA is considered as an aggressive procedure, the American Thyroid Association developed the following criteria for FNA indication: | ||
* Nodules ≥ 1 cm with intermediate or high suspicion US pattern | * Nodules ≥ 1 cm with intermediate or high suspicion US pattern | ||
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* Nodules ≥ 2 cm with very low suspicion US pattern (e.g., spongiform). Observation an alternate option | * Nodules ≥ 2 cm with very low suspicion US pattern (e.g., spongiform). Observation an alternate option | ||
* For nodules that do not meet the above criteria, FNA is not required, including nodules < 1 cm (with some exceptions) and purely cystic nodules 26462967 | * For nodules that do not meet the above criteria, FNA is not required, including nodules < 1 cm (with some exceptions) and purely cystic nodules 26462967 | ||
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==References== | ==References== | ||
Revision as of 19:36, 21 July 2017
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Other Diagnostic Studies
Fine needle aspiration
The most important diagnostic test to differentiate thyroid nodules from each other is fine needle aspiration (FNA). As FNA is considered as an aggressive procedure, the American Thyroid Association developed the following criteria for FNA indication:
- Nodules ≥ 1 cm with intermediate or high suspicion US pattern
- Nodules ≥ 1.5 cm with low suspicion US pattern
- Nodules ≥ 2 cm with very low suspicion US pattern (e.g., spongiform). Observation an alternate option
- For nodules that do not meet the above criteria, FNA is not required, including nodules < 1 cm (with some exceptions) and purely cystic nodules 26462967