title: The concentric-ring sign revisited.
authors.forename: E S
authors.initials: ES
authors.lastname: Siegelman
authors.forename: E K
authors.initials: EK
authors.lastname: Outwater
mesh_terms: D000307:Adrenal Gland Diseases / Q000175:diagnosis; D006470:Hemorrhage / Q000175:diagnosis*; D006801:Humans; D008279:Magnetic Resonance Imaging