Benign macrofollicular thyroid lesion: Findings on fine-needle aspirate

High-power view of a fine-needle aspirate of a thyroid nodule. The follicular cells are small, uniform in size, flat, and noncrowded, with smeared colloid in the background. These findings can be seen in a normal thyroid gland, benign sporadic goiter, or a true benign macrofollicular monoclonal tumor.