Korean J Urol.  2009 Sep;50(9):859-864.

Relationships between Relative Proportion of Tissue Components, Urodynamic Parameters, and Low Urinary Tract Symptoms in Patients with Benign Prostatic Hyperplasia

• Kim HS
• Lee SW
• Kim EK
• Cho JM
• Han KH
• Kang JY
• Yoo TK

Abstract

PURPOSE
This study was designed to investigate the relationship between the histological composition of the prostate, preoperative clinical parameters, and the results of transurethral resection of prostate (TURP). MATERIALS AND METHODS: A total of 61 patients with benign prostatic hyperplasia (BPH) who had undergone TURP were enrolled retrospectively. Slides were surveyed for relative areas (%) of glandular epithelium (GE), stroma (ST), and smooth muscle (SM) in stroma by performing immunohistochemistry, and the mean outcomes were calculated with a computer-assisted image analyzer (x200). RESULTS: Total prostate volume was less than 40 ml in 19 patients (group 1), 40 to 80 ml in 23 patients (group 2), and more than 80 ml in 19 patients (group 3). The percentage of SM was significantly greater in group 1 (29.5+/-4.2%) than in group 3 (23.7+/-3.2%), but GE and ST did not differ significantly. AG number was significantly higher in group 3 than in the other groups but did not correlate with SM. Improvements in International Prostate Symptom Score, which were similar in each group, were positively correlated with SM. CONCLUSIONS: SM in prostate adenoma is increased in men with a small prostate and may play an important role in lower urinary tract symptoms in small BPH

Keyword

Prostatic hyperplasia; Transurethral resection of prostate

MeSH Terms

Adenoma
Epithelium
Humans
Immunohistochemistry
Lower Urinary Tract Symptoms
Male
Muscle, Smooth
Prostate
Prostatic Hyperplasia
Retrospective Studies
Transurethral Resection of Prostate
Urinary Tract
Urodynamics

Figure

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  Fig. 1 High power view shows (A) marked proliferation of smooth muscle bundles compared with the small proportion of glandular components, and (B) dominant complex glandular proliferation compared with the smooth muscle component (immunohistochemical stain, ×200).

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