The WES triad -- a specific sonographic sign of gallstones in the contracted gallbladder.
The "WES" triad -- that is, the demonstration of the gallbladder Wall, the Echo of the stone, and the acoustic Shadow -- permits the specific diagnosis of stones in a contracted gallbladder. This triad positively identifies the gallbladder and helps to differentiate the contracted gallbladder with stones from a loop of bowel containing gas.
D002769:Cholelithiasis / Q000175:diagnosis*; D005705:Gallbladder Diseases / Q000150:complications*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014463:Ultrasonography