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Updated: Oct 2, 2026
Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
Published on: August 14, 2019
Age-related differences in internal prostatic architecture on transrectal ultrasonography: results of a community
N Masumori1, T Tsukamoto, Y Kumamoto
1Department of Urology, Sapporo Medical University School of Medicine, Japan.
Purpose:
We determined age-related differences in prostate internal architecture and prostate volume by transrectal ultrasonography in Japanese men 40 to 79 years old.
Materials And Methods:
The 287 study participants were categorized by transition zone disease: group 1-not visible (normal prostate), group 2-visible, borders unclear (diffusely enlarged hyperplasia) and group 3-visible, border clear (nodularly enlarged hyperplasia).
Results:
Group 1 comprised 40% of men 50 to 79 years old and showed slightly decreased median prostate volume with age. Prostate volume and its variance increased with age in group 3 but differed little across age in group 2.
Conclusions:
In a community sample the prostatic internal architecture relationship with age and prostate volume suggested differing growth patterns.
