Preferred Label : shadow sign;
RADLEX synonyms : WES sign; wall-echo-shadow sign; WES complex; double-arc-shadow sign; wall-echo-shadow complex;
Definition : Two echogenic lines with hypoechoic space between and shadowing distal to the far
field line are seen in an ultrasound of the gallbladder. Suggests cholelithiasis;
represents echogenic wall (W), thin hypoechoic layer of bile, echo (E) produced by
gallstone, and acousting shadowing (S) of stone.;
Source : Radiology 2000; 214:881-882;
Origin ID : RID35696;
Associated condition(s)
Two echogenic lines with hypoechoic space between and shadowing distal to the far
field line are seen in an ultrasound of the gallbladder. Suggests cholelithiasis;
represents echogenic wall (W), thin hypoechoic layer of bile, echo (E) produced by
gallstone, and acousting shadowing (S) of stone.
