Ejaculatory duct cyst: the case for effective use of transrectal longitudinal ultrasonography

We report a case of an ejaculatory duct cyst. Although vasovesiculography showed insufficient differentiation from other cystic lesions, we were able to diagnose the entity by longitudinal transrectal prostatic ultrasonography with electronic linear scanning. On the basis of these findings transurethral unroofing of the cyst was performed successfully.