Figure 2: Photomicrographs of the male albino rats lung of the Cd group showing in (A), the lymphocytic infiltrations (ly) around the bronchioles (b) and edematous blood vessels (o) H&E X400. In (B), thickening in the interalveolar septum (arrow), degeneration of the bronchioles epithelium (d), lymphocytic infiltration (ly) and edematous blood vessels (o) H&E X400. In (C),increased fibrous Ct (f) around the bronchioles (b) with lymphocytic infiltrations (ly) and edematous blood vessels (o) Masson trichrome X400. In (D), negative immunostaining for bcl-2 X400. In (E), positive immunostaining for bax (arrows) X400. In (F), positive immunostaining for ki67 (arrows) X400.