[Cyst of the seminal vesicle. Images on ultrasonography, x-ray computed tomography and magnetic resonance. Apropos of a case].

A case of seminal vesicle cyst is reported. Magnetic resonance (M.R.) appearance of the seminal vesicle cyst is described first. A brief review of the literature for seminal vesicle cysts is made. New imaging modalities (ultrasound, C.T. scan an M.R.) are illustrated, their role is discussed.