A review of follicular neoplasm of the thyroid

Microfollicles, as seen in a fine-needle aspiration specimen of a thyroid nodule. This finding is the canonical basis to render a diagnosis in the category of "follicular neoplasm". Diagnosing follicular neoplasms in thyroid fine-needle aspiration specimens can be difficult, and for good reason: it is a diagnostic category intended for a family of lesions for whom it is generally not possible to…