title: Flank mass in a newborn.
authors.affiliation: Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri 63110.
authors.forename: P D
authors.initials: PD
authors.lastname: Kountz
authors.forename: M J
authors.initials: MJ
authors.lastname: Siegel
authors.forename: E
authors.initials: E
authors.lastname: Shapiro
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D006869:Hydronephrosis / Q000151:congenital* / Q000000981:diagnostic imaging / Q000473:pathology; D007231:Infant, Newborn; D007668:Kidney / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000473:pathology; D011877:Radionuclide Imaging; D014463:Ultrasonography