Ureteral ectopy in the seminal vesicle associated with cyst formation and renal dysplasia: contribution of 3D-MRI.

A case of a congenital anomaly of the urinary tract in a 25-year-old Caucasian male is presented. Preoperative and pathologic findings demonstrated an ectopic ureter which terminated in a seminal vesicle cyst. Both structures formed an abortive common duct at the bladder base. The ipsilateral kidney was dysplastic. Findings on voiding cytourethrography, spiral CT, and MRI are discussed and correlated with pathologic findings. The authors suggest that MRI, especially with the use of 3D sequences, is the examination of choice in the evaluation of a complex congenital urogenital anomaly as presented.