Figure 3: Immunoperoxidase stain in HT: (a) Reactive lymphoid follicles decorated by CD20 (x200). (b) Predominance of CD3-positive T-cells (x200). (c) HT with reactive lymphoid follicles having CD3-posi&tive mantle zone (x200). (d) Few CD20-positive B-cells (x400). (e) CD3-positive T-cell infi ltrate in between the thyroid follicles (x400). (f) Few non-destructive LELs (arrow) formed of CD3-positive T-cells (x400). (g) Intact thyroid follicles decorated by cytokeratin (x200). (h) Frequent CD20-positive lymphoid follicles and interstitial lymphoplasmacytoid infi ltrate (x200)