P-37: The Ejaculatory Duct Ectopically InvadingTowards the Bladder with Multiple CongenitalMalformations of the Homolateral UrogenitalSystem: A Report of a Rare Case and an EmbryologicalReview

Background: To report a rare case of a left ejaculatory duct that allotropically protrudes or invades towards the left vesicle triangular area with its dead end. Materials and Methods: The patient simultaneously exhibited multiple congenital malformations of the homolateral urogenital system, such as the absence of a left kidney, the dysplasia and allotopia of the left seminal vesicle, the absence of the left ureterostoma, separation between the left testis and the epididymis tail, and the maldevelopment of the left testis. Results: According to all clinical and laboratory evidence, the case represented a new syndrome, which we named Wuyang’s syndrome. Conclusion: It involved a rare phenomenon in embryonic development: the dysplastic proximal vas precursor (PVP), having intruded into a common mesonephric duct (CMD) and accidentally encroaching on the ureteric bud (UB) position, resulted in the absence or dysplasia of the homolateral urinary tract and ectopic invasion of the bladder by the homolateral seminal tract.