title: Ureteral duplication with lower pole ectopia to the vas: a case report of an exception to the Weigert-Meyer law.
abstract: We report an unusual case of ureteral duplication with lower-pole ectopia and ureterolithiasis, which violates the Weigert-Meyer law. The duplicated ureter arose from a lower-pole calyx and drained inferiorly into the ipsilateral vas. A presentation of the case is followed by a comparison to the only known similar one, reported in 1988. A possible embryologic hypothesis for this anomaly is discussed.
authors.affiliation: Division of Pediatric Urology, Brady Urological Institute, Johns Hopkins Hospital, Baltimore, Maryland, USA.
authors.forename: B L
authors.initials: BL
authors.lastname: Slaughenhoupt
authors.forename: H D
authors.initials: HD
authors.lastname: Mitcheson
authors.forename: D L
authors.initials: DL
authors.lastname: Lee
mesh_terms: D000015:Abnormalities, Multiple / Q000196:embryology; D006801:Humans; D007668:Kidney / Q000002:abnormalities*; D008297:Male; D008875:Middle Aged; D014513:Ureter / Q000002:abnormalities*; D014649:Vas Deferens / Q000002:abnormalities*