The incidence of calculi in focal nonshadowing echogenicity in the gallbladder

M. A. Sandler, E. M. Biunno, M. L. Gross, B. L. Madrazo

Research output: Contribution to journalArticlepeer-review


Sonography is valuable in the accurate diagnosis of gallstones. All but the smallest stones attenuate sound, a phenomenon known as acoustic shadowing. However, when small focal nonshadowing opacities are present, the diagnostic question is whether they represent small calculi. In a four-year review of sonographic studies performed at Henry Ford Hospital, 12 patients in whom this sonographic finding was present underwent cholecystectomies, and seven had calculi (58%). If the presence of gallstones is the factor that will determine whether surgery will be performed, we recommend a repeat examination to confirm the presence of the focal opacities and to elicit acoustic shadowing.

Original languageEnglish (US)
Pages (from-to)112-115
Number of pages4
JournalHenry Ford Hospital Medical Journal
Issue number2-3
StatePublished - Dec 1 1985
Externally publishedYes

ASJC Scopus subject areas

  • Medicine(all)


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