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| Midline Cysts in the Prostate: Incidence in Healthy Men
on Transrectal Ultrasonography (TRUS) |
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| Eun Kyoung Lee, MD1, Sun Ho Kim, MD2, Yong Seok Lee, MD1 |
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| 1Department of Radiology, Dongguk University Il-san Hospital
2Department of Radiology, National Cancer Center |
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| Purpose: To describe the incidence of prostatic midline cysts in healthy men on
transrectal ultrasonography.
Materials and Methods: From 2005 to 2009, 1,175 transrectal ultrasonography
examinations were performed on 1,086 men (22-85 years) in a health promotion
center. Incidence and size of midline cysts in men without any symptoms in the genitourinary
tract were investigated according to age, prostate volume, and other ultrasonography
findings.
Results: The incidence of midline cysts in healthy men was 28% (280/999). The
mean diameter of midline cysts was 7.2 mm (1-30 mm). The incidence was the highest
(32/102; 31.4%) and the size was the smallest (6.2 mm in mean) in men older
than 60 years. The incidence of midline cysts in prostates larger than 20 ml was
33.2% (157/473) and in prostates smaller than or equal to 20 ml was 23.4% (123/526)
(p < 0.05). Abnormal ultrasonography findings other than midline cysts were found in
196 men, and the incidence of midline cysts was high with seminal vesicle abnormalities
(5/11; 45.5%).
Conclusion: The incidence of prostatic midline cysts in healthy men on transrectal
ultrasonography is higher than the result of previous studies. The incidence is higher
in an enlarged prostate than in a prostate of normal size. |
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| Keyword : Prostate; Cyst; Ultrasonography; Mu ¨llerian duct |
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pdf파일 : 271-276이은경.pdf 
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> Journal > Journal Search 
Journal of Korean Society of Ultrasound in Medicine 2011 ; 30 (4) : p.271-276
