Tramadol Induced Adrenal Insufficiency: Histological, Immunohistochemical, Ultrastructural, and Biochemical Genetic Experimental Study

Figure 3

Photomicrographs of the adrenal gland of group III showing (A) marked congested blood capillaries of ZF and ZR (arrows), ×100; (B) cells with marked vacuolated cytoplasm and pyknotic nuclei in ZG (black arrows) and ZF (red arrows), ×400; (C) ZR showing cells with vacuolated cytoplasm and pyknotic nuclei (arrows) and markedly congested capillaries (c), ×400.