Preferred Label : concentric ring sign;
RADLEX synonyms : target sign of kidney;
Definition : Hypointense outer ring, hyperintense inner ring, and central mass of normal or variable
intensity seen on kidney MR image. Outer and inner rings represent pseudocapsule and
hemoglobin degradation, respectively. Suggests hematoma.;
Source : RadioGraphics 2004;24:S247-S280;
Origin ID : RID35103;
Associated condition(s)
Hypointense outer ring, hyperintense inner ring, and central mass of normal or variable
intensity seen on kidney MR image. Outer and inner rings represent pseudocapsule and
hemoglobin degradation, respectively. Suggests hematoma.
