title: Case Report. CT and US features of renal matrix stones with calcified center.
abstract: We report imaging findings of renal matrix stones in a patient with congenital ureteropelvic junction obstruction associated with urinary tract infection. The stones were composed of a calcified center and a non-calcified peripheral matrix that was slightly high attenuated on CT and nonshadowing on US.
authors.affiliation: Department of Diagnostic Radiology, Seoul National University Hospital, Chongno-Gu, Korea.
authors.forename: S H
authors.initials: SH
authors.lastname: Kim
authors.forename: S E
authors.initials: SE
authors.lastname: Lee
authors.forename: I A
authors.initials: IA
authors.lastname: Park
mesh_terms: D006801:Humans; D007669:Kidney Calculi / Q000150:complications / Q000000981:diagnostic imaging*; D007682:Kidney Pelvis / Q000002:abnormalities; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D014513:Ureter / Q000002:abnormalities; D014552:Urinary Tract Infections / Q000150:complications