[Seminal vesicle cyst and ipsilateral kidney failure. Report of 2 cases and review of the literature].

The seminal vesicle cyst is a congenital malformation of the male urogenital tract, which seems to be more frequent than originally presumed. It is usually combined with an ipsilateral renal agenesis and an ectopic ureter. Two relevant cases are reported and embryology, major presenting symptoms, diagnostic procedures, differential diagnosis and therapy are extensively discussed.