Korean J Urol.  2008 Aug;49(8):720-726.

Study of Prostate of Korean Young Adult Using Transrectal Ultrasonography

• Seol SH
• Park YW
• Bahk JY
• Min SK

Abstract

PURPOSE: The prostate of the young adult is not a subject which has received much attention, and the vast majority of prostate studies have placed their emphasis predominantly on elderly patients. It seems, then, that an investigation of the prostate in younger patients is warranted, and perhaps long past due. Thus, we attempted to determine the mean prostate volume in Koreans in their 20's. We also reported on the relationships between prostate size and body mass index, as well as body surface area, and compared the prostates of normal Korean youths with those of chronic prostatitis patients.
MATERIALS AND METHODS
Between March 2002 and February 2008, we chronicled 583 cases of transrectal ultrasonography(control group: 271, chronic prostatitis group: 314) and calculated prostate volumes via the biplane method. 178 of the cases in the chronic prostatitis group were again examined after treatment. In all of the cases, body mass index and body surface area were assessed.
RESULTS
The mean age of the patient was 22.83+/-2.46 years. The mean prostate volume of the 583 young adults was 15.58+/-3.11ml(control group: 15.61+/-3.16ml, chronic prostatitis group: 15.56+/-3.07ml). We ensured that there were no differences between the normal group and the chronic prostatitis group. The prostate volumes of the chronic prostatitis patients made no odds with the treated prostates. Additionally, prostate volume was directly proportional to the body mass index and the body surface area.
CONCLUSIONS
The prostate volume of young Korean adults in their 20's was approximately 15.6ml. The development of chronic prostatitis in young men had no appreciable effect on prostate size, but was shown to induce a variety of histologic changes in the prostate, and these changes were similar to those observed in older patients.

Keyword

Prostate volume; Transrectal ultrasonography; Chronic prostatitis; Body mass index; Body surface area

MeSH Terms

Adolescent
Adult
Aged
Body Mass Index
Body Surface Area
Humans
Male
Prostate
Prostatitis
Young Adult

Figure

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  Fig. 1 Prostate volume measurements using transrectal ultrasonography. AP: anteroposterior diameter, Trans: transverse length, Long: longitudinal length.

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  Fig. 2 Scattergram of prostate volume versus body mass index (BMI) (kg/m2) in 583 differentiating between the normal group and chronic prostatitis group. A weak positive correlation is noted (r=0.223, p<0.001). Normal group (n=271); r=0.216, p<0.001, Chronic prostatitis (n=312); r=0.232, p<0.001

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  Fig. 3 Scattergram of prostate volume versus body surface area (BSA) (kg/m2) in 583 differentiating normal group and chronic prostatitis group. Prominent positive correlation is noted (r=0.586, p<0.001). Normal group (n=271); r=0.549, p<0.001, Chronic prostatitis (n=312); r=0.625, p<0.001

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  Fig. 4 Prostate in sagittal plane. (A) The prostate of a 23-year-old man. Flat prostatic upper margin faces into bladder. Prostatic urethra is nearly linear. Arrow indicates membranous urethra. (B) The prostate of a 57-year-old man. Prostate protrudes into bladder bilobularly. Prostatic urethra lines curved. B and P imply urinary bladder and prostate, respectively.

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