Preferred Label : peripheral fat sign;
Definition : Lucent halo, created by sinus fat, surrounds a parahilar mass; division between lucent
mass and opacified parenchyma is blurred on a pyelogram. Suggests parapelvic renal
cyst.;
Source : Eisenberg, Ronald L. Atlas of Signs in Radiology.;
Origin ID : RID35434;
Associated condition(s)
Lucent halo, created by sinus fat, surrounds a parahilar mass; division between lucent
mass and opacified parenchyma is blurred on a pyelogram. Suggests parapelvic renal
cyst.
