Figure 4: EMF-exposed group (II) 4A, B: A: showing Irregular nuclei of different cells (white arrow) (Scale bar=2µm). 4B: showing parafollicular cell (pa) lying on basement membrane. It has oval nucleus (N) , electron dense granules (g) and abnormal mitochondria (m) (Scale bar=1µm).Vitamin E-treated group (III) 4C,D: C: showing different follicular cells (f);with numerous dilated cisternae of rough endoplasmic reticulum (Rr) and polymorphic dense lysosomal granules (L). Their apical borders show microvilli (mv).4D: showing parafollicular cell (pa) with inrdented nucleus (n) and peripheral condensation of heterochromatin (ht).Its cytoplasm contains lysosomes (L) with few electron dense granules (g) (Scale bar=2µm). 4E, F: recovery group (IV) 4E: showing (a) part of follicle lined by follicular cells (f) of variable shaped nuclei. One has irregular nucleus (N) with peripheral condensation of heterochromatin while, other cell has rounded nucleus (R). Large intracytoplasmic electron lucent vacuoles (v) are seen. Fibroblast (arrow) with large amount of collagen fibers (arrow head (is observed in interfollicular space (I). 4F: One follicular cell (f) has electron dense shrunken nucleus (n) .Its cytoplasm contains disorganized dilated RER (Rr), lysosomes (L) and variable sized vacuoles (V) (Scale bar=2 µm).