title: Case report: echogenic necrotic renal papillae simulating calculi.
abstract: Sloughed necrotic papillae usually show soft tissue sonographic characteristics. We report a patient who presented with septicaemia and pyonephrosis due to ureteric obstruction caused by shed necrotic papillae. These were echogenic on ultrasound, and resembled calculi.
authors.affiliation: Department of Radiology & Organ Imaging, Prince of Wales Hospital, Chinese University of Hong Kong, Shatin.
authors.forename: H
authors.initials: H
authors.lastname: Cheung
authors.forename: P S
authors.initials: PS
authors.lastname: Chan
authors.forename: C
authors.initials: C
authors.lastname: Metreweli
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007669:Kidney Calculi / Q000000981:diagnostic imaging* / Q000473:pathology; D007679:Kidney Medulla / Q000000981:diagnostic imaging* / Q000473:pathology; D009336:Necrosis; D014463:Ultrasonography