Figure 2

Distributions of acervular size and volume from a microradiograph of an entire human PG.
(a) Patched image of an entire PG without physical sectioning (male; age 80). (b) Magnified image of the yellow box region in (a). (c) Magnified image of the white box region in (a). (d) Size distribution of the acervuli measured from the microradiograph of Fig.2a. (inset) Expanded scale. nA, non-aggregared region; A, aggregated region; grey box, mixed region (nA+A). (e) Volume distribution of the acervuli estimated from Fig. 2d assuming a spherical shape.