Journal of the Formosan Medical Association
Volume 105, Issue 2 , Pages 125-131, 2006

Magnetic Resonance Imaging of Seminal Vesicle Cyst Associated with Ipsilateral Urinary Anomalies

  • Sheng-Chau Huang

      Affiliations

    • Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan, R.O.C.
    • ,
  • Yiu-Wah Li

      Affiliations

    • Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan, R.O.C.
    • Department of Radiology, Mackay Memorial Hospital, Taipei, Taiwan, R.O.C.
    • Corresponding Author InformationCorrespondence to: Dr. Yiu-Wah Li, Department of Medical Imaging, National Taiwan University Hospital, 7, Chung-Shan South Road, Taipei 100, Taiwan, R.O.C.
    • ,
  • Shyh-Jye Chen

      Affiliations

    • Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan, R.O.C.
    • ,
  • Chung-Pin Sheih

      Affiliations

    • Department of Chung-Pin Clinic, Taipei, Taiwan, R.O.C.

Department of Diagnostic Radiology, Chang Gung Memorial Hospital, Taipei, Taiwan, R.O.C.

Received 20 January 2005; received in revised form 24 February 2005; accepted 12 April 2005.

Article Outline

Background

Seminal vesicle cysts rarely cause symptoms. Data on long-term follow-up from childhood to adulthood are lacking. The study analyzed the magnetic resonance imaging (MRI) and follow-up results of this condition.

Methods

From 1991 to 1996, seminal vesicle cyst was diagnosed in 13 boys (mean age, 12 years; range, 7-15 years), six of whom had long-term follow-up data. The clinical symptoms and MRI findings at diagnosis and at follow-up were analyzed.

Results

The seminal vesicle cyst was on the right side in six patients and on the left in seven. The size varied, ranging from 1.0 × 1.3 × 1.4 to 4.4 × 3.1 × 3.6 cm. All showed high signal intensity on T2-weighted images but variable signal intensity on T1-weighted images. Associated urinary tract anomalies included renal anomalies (dysplasia in 2 patients, agenesis in 11), ectopic ureteral orifice (11), hydroureter (6), and vertebral anomalies (2). One of the six patients with follow-up had repeated urinary tract infection and underwent surgical resection of the cyst 8 years after the diagnosis. The other five had no symptoms during the follow-up period. Three of the six patients had repeat MRI after a median of 11 years, which showed slight cyst enlargement and increased T1-weighted signal intensity.

Conclusion

Most seminal vesicle cysts were asymptomatic and did not change during long-term follow-up. MRI is a powerful tool for detecting seminal vesicle cysts and in delineating associated congenital anomalies of the urogenital tract.

Key Words:  magnetic resonance imaging , seminal vesicle cyst , urinary anomalies

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PII: S0929-6646(09)60333-8

doi:10.1016/S0929-6646(09)60333-8

Journal of the Formosan Medical Association
Volume 105, Issue 2 , Pages 125-131, 2006

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