Significance of nonshadowing focal opacities at cholecystosonography.

1 October 1980

journal article
research article
Published by Radiological Society of North America (RSNA) in Radiology

Vol. 137 (1) , 181-185
https://doi.org/10.1148/radiology.137.1.7422843

Abstract

Nonshadowing focal opacities within the gallbladder lumen are a frequent finding with cholecystosonography. A prospective analysis of 125 patients with this finding is described. In 36 patients surgical proof was obtained. Nonshadowing echogenic foci in the gallbladder can be separated into 2 distinct categories. Incidence of gallstones can be determined for each. The categories are nonshadowing echogenic foci less than 5 mm in size (incidence of gallstones is 81% for those patients coming to surgery) and a fluid-fluid level or sludge (incidence of gallstones is less than 10% for those coming to surgery).