title: Male With Fever and Flank Pain. Urolithiasis with calculus at the ureterovesicular junction and twinkling artifact.
authors.affiliation: Division of Emergency Ultrasound, Department of Emergency Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA.
authors.forename: Wilma
authors.initials: W
authors.lastname: Chan
authors.affiliation: Division of Emergency Ultrasound, Department of Emergency Ultrasound, Brigham and Women's Hospital, Boston, MA.
authors.forename: Michael B
authors.initials: MB
authors.lastname: Stone
mesh_terms: D016477:Artifacts; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D014463:Ultrasonography; D052878:Urolithiasis / Q000000981:diagnostic imaging*