title: Prenatal diagnosis of renal agenesis in a twin gestation.
abstract: Bilateral renal agenesis is a lethal congenital anomaly. It appears to be transmitted in a polygenic pattern. The prenatal ultrasound findings consist of severe oligohydramnios, absence of the fetal bladder, and failure to identify fetal kidneys. Twin gestations with renal agenesis have been described in the paediatric literature. We detail a case of a patient with two prior affected pregnancies with bilateral renal agenesis. Her latest pregnancy was diagnosed prenatally, with one fetus with bilateral and the other fetus with unilateral renal agenesis. The ultrasound findings should be differentiated from the stuck twin phenomenon.
authors.affiliation: Department of Obstetrics and Gynecology, University of North Carolina at Chapel Hill.
authors.forename: J A
authors.initials: JA
authors.lastname: Kuller
authors.forename: C C
authors.initials: CC
authors.lastname: Coulson
authors.forename: M C
authors.initials: MC
authors.lastname: McCoy
authors.forename: G C
authors.initials: GC
authors.lastname: Altman
authors.forename: J M
authors.initials: JM
authors.lastname: Thorp
authors.forename: V L
authors.initials: VL
authors.lastname: Katz
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D004200:Diseases in Twins / Q000175:diagnosis*; D005260:Female; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D007668:Kidney / Q000002:abnormalities* / Q000000981:diagnostic imaging; D008297:Male; D011247:Pregnancy; D014430:Twins, Monozygotic; D016216:Ultrasonography, Prenatal