Biliary Sludge

Figure 1. Biliary sludge appears as low-amplitude echoes without postacoustic shadowing. The echoes layer in the dependent
portion of the gallbladder and shift slowly with positioning. (Courtesy of Dr. Tom Winter, University of Washington, Seattle,
Washington.).
Biliary sludge on ultrasonography. Top.Bottom.
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Ann Intern Med
February 16, 1999
vol. 130
no. 4 Part 1
301-311