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Fig. 13A Pulsating multilinear or multipunctate contrast-enhanced sonography
pattern in occlusive malignant thrombus in 68-year-old man. Simultaneous
oblique subcostal (left) and color Doppler (right)
sonography scans show longitudinal views of right branch of portal vein.
Sonography scan reveals isoechoic area within vessel lumen (arrow)
representing thrombus; on color Doppler sonography, some color signals are
visible within boundaries of thrombus.