Fig. 24. A. Histologic section of cytomegalic inclusion retinitis. The characteristic inclusions cannot be seen at this magnification. Compare the appearance of viable healthy retina (left of arrow) with necrotic retina (right of arrow). The admixture of necrotic retina (clinically white) with hemorrhage (clinically red) accounts for the ophthalmoscopic appearance of this entity. B. Cytomegalovirus retinitis. Histologic section of sensory retina demonstrating massive necrosis involving all layers. (Courtesy of Ralph C. Eagle Jr, MD, Philadelphia, PA)