title: Posterior urethral valves and mirror image anomalies in monozygotic twins.
abstract: Monozygotic (MZ) twins with both posterior urethral valves (PUV) and additional mirror image malformations are described. This association suggests that an early embryonic event may lead to MZ twinning, PUV, and mirror image anomalies.
authors.affiliation: Pediatric Surgery Unit, Policlinico Umberto I, University of Rome La Sapienza, Rome, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Morini
authors.forename: Michele
authors.initials: M
authors.lastname: Ilari
authors.forename: Alessandra
authors.initials: A
authors.lastname: Casati
authors.forename: Antonietta
authors.initials: A
authors.lastname: Piserà
authors.forename: Lucia
authors.initials: L
authors.lastname: Oriolo
authors.forename: Denis A
authors.initials: DA
authors.lastname: Cozzi
mesh_terms: D000328:Adult; D004200:Diseases in Twins / Q000235:genetics*; D005146:Facial Asymmetry / Q000235:genetics*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D051437:Renal Insufficiency / Q000235:genetics*; D014430:Twins, Monozygotic; D014521:Urethra / Q000002:abnormalities* / Q000196:embryology