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22

NCCN Guidelines for Patients

®

:

Thyroid Cancer, Version 1.2017

2

Testing

Review

Before doing an FNA, things are considered like the

size of the nodule, location, and features

.

Certain

nodule features and your health history may alert

a doctor to do more testing. You may not have an

FNA for larger nodules in some cases. For example,

nodules larger than 4 cm may involve surgery to

remove a lobe of the thyroid or the whole thyroid.

See Part 4 for more information on surgery.

Review

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Two basic tools of diagnosis are when your

doctor takes your medical history and does an

exam of your body.

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Blood tests give the doctor information to plan

the next steps for other testing or treatment.

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Imaging tests are used to take pictures

(images) of the inside of your body.

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Tissue or fluid must be removed from your

body and tested to diagnose cancer. A biopsy

removes samples of fluid or tissue.

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FNA is the recommended form of biopsy to

assess abnormal thyroid nodules.

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TSH controls the hormones made by the thyroid

and may be normal or abnormal for thyroid

cancer.