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. 2019 Jul 23;52(4):306–313. doi: 10.5946/ce.2019.056

Fig. 3.

Fig. 3.

Contrast-enhanced harmonic ultrasound (CH-US) images of gastrointestinal stromal tumor (GIST). (A, B) GIST with “poor” pattern on abdominal ultrasound and contrast-enhanced harmonic abdominal ultrasound. (A) Fundamental B-mode abdominal ultrasound shows iso-echoic tumor. (B) An image of CH-US showing blood flow restricted to the periphery, without filling the parenchymal flow of the tumor (C, D). GIST with “rich” pattern on abdominal ultrasound and contrast-enhanced harmonic abdominal ultrasound. (C) Fundamental B-mode abdominal ultrasound showing an iso-echoic tumor. (D) An image of CH-US shows plentiful vessels extending from the periphery to the tumor center.