Giant prostatic utricular cyst with retrograde ejaculation: a case report and review of literature

The giant prostatic utricular cyst is a rare abnormality in the ejaculatory duct area. We report a 29-year-old male patient who had multiple semen examinations suggesting azoospermia. Transrectal ultrasonography (TRUS) showed a midline cyst of the prostate, about 6.0 cm in diameter. Pelvic magnetic resonance imaging (MRI) showed an approximately 7.0 cm diameter cyst between the seminal vesicles with high signal intensity on T1 and T2 weighted images. Urine sediment collected via prostate massage immediately after patient ejaculation contained a large amount of sperm. We performed a laparoscopic surgery for the prostatic utricular cyst, and successfully found sperm in semen postoperatively. The patient's symptoms, TRUS, MRI, and surgical results confirmed a diagnosis of giant prostatic utricular cyst with retrograde ejaculation. We review this case as well as previously reported cases and associated literature.