Figure 5. Occasionally, the diagnosis of herpes simplex or varicella-zoster virus infection can be made directly from the routine stains. This low power photomicrograph of a failed liver allograft was obtained 3 days after hepatic transplantation. Note the large areas of coagulative-type necrosis scattered randomly throughout the sample [arrows]. The inset shows the Cowdry type A inclusions located in the viable cells at the edge of the necrotic zones.