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AJR Am J Roentgenol. 1986 Sep;147(3):505-8.

The V-shaped artifact of the gallbladder wall.

Abstract

Among 20,000 patients who had undergone abdominal or gallbladder sonographic examinations, 36 had a short V-shaped artifact originating from an hyperechoic focus in the gallbladder wall. Associated symptoms were varied and nonspecific. The 10 gallbladders excised because of associated cholelithiasis showed a thickened wall, and seven patients had diverticulosis of the wall with impacted stones. In vitro sonographic examination of five gallbladders reproduced the "V" artifact and showed that it originated from a small intramural cholesterol stone. The V artifact should be distinguished from the larger comet-tail and ring-down artifacts, which arise from metal or gas.

PMID:
3526840
DOI:
10.2214/ajr.147.3.505
[Indexed for MEDLINE]

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