There are certain situations in which your physician may elect not to perform a biopsy of a nodule. For example, in a patient with an overactive thyroid (hyperthyroidism), the chance for a nodule to be cancerous is significantly less, particularly if other studies (such as nuclear thyroid imaging) show that the nodule is producing thyroid hormone (a "hot" nodule).
A doctor may recommend fine needle aspiration biopsy of the thyroid in the following situations:
To make a diagnosis of a thyroid nodule.
To help select therapy for a thyroid nodule.
To drain a cyst that may be causing pain.
To inject a medication to shrink a recurrent cyst.
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