Fig. 35. Progressive sclerosis of Bruch's membrane. 1. Increased density of Bruch's membrane extending into intercapillary septum (between arrowheads). 2. Density extending to floor of capillaries (arrowhead). 3. Lumina of capillaries are narrower as columns become wider (arrowhead). 4. Capillaries are almost totally obliterated by sclerotic changes. (AFIP Neg 75-8102, 75-8105, 75-4948, 75-4943; PAS, × 440)