title: A renal riddle.
authors.affiliation: Department of Radiology, Royal Free Hospital NHS Trust, London, NW3 2QG. tombooth@doctors.org.uk
authors.forename: Thomas C
authors.initials: TC
authors.lastname: Booth
authors.forename: Rikin
authors.initials: R
authors.lastname: Hargunani
mesh_terms: D005315:Fetal Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D006869:Hydronephrosis / Q000000981:diagnostic imaging*; D033162:Incidental Findings; D007668:Kidney / Q000002:abnormalities; D011877:Radionuclide Imaging; D016216:Ultrasonography, Prenatal