Preferred Label : renal halo sign;
RADLEX synonyms : perirenal fat sign;
Definition : Radiolucent halo seen around the kidney on a radiograph or intravenous pyelogram,
representing fat between renal capsule and perirenal fluid. Suggests pyelonephritis,
diffuse neoplasia, or hematoma. If acceptable, halo around left kidney also suggests
pancreatitis.;
Source : Eisenberg, Ronald L. Atlas of Signs in Radiology.;
Origin ID : RID35476;
Associated condition(s)
Radiolucent halo seen around the kidney on a radiograph or intravenous pyelogram,
representing fat between renal capsule and perirenal fluid. Suggests pyelonephritis,
diffuse neoplasia, or hematoma. If acceptable, halo around left kidney also suggests
pancreatitis.