Congenital patent urachus associated with complete (hypospadiac( duplication of the urethra and solitary crossed renal ectopia.

The literature is reviewed on the incidence of patent urachus. Three cases are reported and 1 is described in detail. In that case the patent urachus was associated with complete duplication of the urethra and solitary crossed renal ectopia. The rarity of these associated lesions is stressed, especially the fact that the second urethra was situated in the hypospadiac position. Two years after excision of the patent urachus urine retention developed, which was treated by dividing the septum between the 2 urethras in the region of the prostate.