Journal of Korean Society of Medical Ultrasound 1999;18(3): 175-181.
Transperineal Ultrasonographic Findings of Female Urethral Diverticulum.
Jin Han Cho, Bong Sik Koo, Ki Dong Nam, Jong Cheol Choi, Byeong Ho Park, Kyung Jin Nam, Heon Young Kweon
1Department of Diagnostic Radiology, Dong-A University College of Medicine, Korea.
2Department of Urology, Dong-A University College of Medicine, Korea.
  Published online: January 1, 2001.
ABSTRACT
PURPOSE: The purpose of this study was to explore the role of sonography for women with a suspected urethral diverticulum and to evaluate the transperineal ultrasonographic findings of female urethral diverticulum. MATERIALS and METHODS:Eight women (mean age, 44 years) who presented with urethral symptoms and clinically suspected urethral diverticula underwent transperineal ultrasonography; sagittal and coronal images were obtained. Sonography was done with either a 7-5MHz curved array transducer or 10-5MHz linear transducer, placed on the perineum at the level of the urethra. Ultrasonograms were assessed for the presence, size, location, shape, echogenicity, and septum. Five patients underwent voiding cystourethrography (VCUG). Results of the sonograms and VCUGs were compared with each other and with surgical findings. RESULTS: Longitudinally, all lesions were located in a middle third of the urethra. In axial plane, 4 diverticula wrapped around 50-100% of the urethra, 3 cases located posteriorly, and 1 case laterally. Seven diverticula contained echogenic debris. Three cases have septa in the diverticulum. The outer margin of the diverticula was smooth in 2 patients and was lobulated in 6 patients. In 3 of 5 cases who underwent VCUG, diverticula were filled with contrast, and appeared to be smaller than those of ultrasonography. In addition, all were single diverticulum in VCUG. CONCLUSION: Most urethral diverticulum were located in a middle third of the urethra, wrapped around the urethra or found posteriorly. Many cases appear unilocular or multilocular with echogenic debris. Transperineal ultrasonography is easy to operate and accurate for showing urethral diverticulum, and it may be useful for diagnosing this group of women with urethral symptoms and suspected urethral diverticulum. It provides information on the extent and location of the diverticulum, which are important in surgical excision.
Keywords: Urethra US; Urethra diverticula
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