Fig. 1

Diagram showing the procedures used for all whole-mount slices from one prostate specimen and the corresponding 11-region map determined by biopsy. The inferior-most 0.5 cm portion of the gland was cut off as the apex. Next, along the cutting edge, whole-mount slices were obtained at 0.4 cm intervals. The remaining portion located approximately 1 cm from the superior-most part of the gland was classified as the base. In the 11-region map, region 11 represented the apex by biopsy, and regions 1–10 represented the mid-gland and the base