Twinkle Artifact of CBD stone "Twinkle artifact" isn't exclusive to urinary stones. Check out this dancing CBD stone. #POCUS Can also be caused by adenomyomatosis, calcified liver lesion, chronic pancreatitis, Foley balloon, needle tract, metallic foreign body. - University of Michigan Ultrasound @MaizeandLube #Twinkle #Artifact #CBD #stone #biliary #clinical #ultrasound #pocus