title: The calyceal crescent sign.
authors.affiliation: Department of Radiology, University of Iowa Hospitals and Clinics, 200 Hawkins Dr, Iowa City, IA 52242, USA.
authors.forename: Geetika
authors.initials: G
authors.lastname: Khanna
mesh_terms: D006801:Humans; D007670:Kidney Calices / Q000000981:diagnostic imaging*; D011859:Radiography