Which term describes tissue that returns fewer echoes than the surrounding tissues?

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Multiple Choice

Which term describes tissue that returns fewer echoes than the surrounding tissues?

Explanation:
Echo intensity on ultrasound reflects how much sound a tissue returns. When tissue produces fewer echoes than its neighbors, it appears darker because its echogenicity is lower. The term for that is hypoechoic. For contrast: anechoic means no echoes at all (completely black, like a fluid-filled cyst); isoechoic means the same brightness as surrounding tissues; hyperechoic means brighter than surrounding tissues. So describing tissue that returns fewer echoes than surrounding tissues fits hypoechoic.

Echo intensity on ultrasound reflects how much sound a tissue returns. When tissue produces fewer echoes than its neighbors, it appears darker because its echogenicity is lower. The term for that is hypoechoic. For contrast: anechoic means no echoes at all (completely black, like a fluid-filled cyst); isoechoic means the same brightness as surrounding tissues; hyperechoic means brighter than surrounding tissues. So describing tissue that returns fewer echoes than surrounding tissues fits hypoechoic.

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