(c) A high-power view of hyperplastic thyroid follicles surrounded by a plasma cell-rich infiltrate. A profile of a single, partially suppressed thyroid follicle is included in the extreme right of the frame for comparison. (Haematoxylin and eosin staining of tissue sections that are 5mm in thickness, taken from a routinely formalin-fixed and paraffin-embedded subtotal thyroidectomy specimen.)