Figure 1: (a) Grade I thyroiditis showing an increased number of lymphocytes (Giemsa, ×200). (b) Grade I thyroiditis showing an increased number of lymphocytes (Giemsa, ×400). (c) Grade II thyroiditis is showing lymphocytic infiltration into follicle showing Hurthle cell changes (Giemsa, ×400). (d) Grade III thyroiditis showing florid lymphocytic infiltrations (Giemsa, ×200)