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  • Title: Ultrasonographic appearance of gas-containing abscesses in the abdomen.
    Author: Kressel HY, Filly RA.
    Journal: AJR Am J Roentgenol; 1978 Jan; 130(1):71-3. PubMed ID: 145800.
    Abstract:
    This report describes the sonographic appearance of six gas-containing abdominal abscesses. Gas-containing abscesses may appear as densely echogenic masses with acoustical shadowing, but may also be seen merely as regions of acoustical shadowing or as an echogenic mass. A hypothesis is advanced that the appearance of gas-containing abscesses as echogenic masses may be due to a "microbubble" constrast effect.
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