adj. (in ultrasound imaging) describing a brighter area, which is usually caused by any structure (e.g. a stone) that reflects the sound waves (echoes) more than the adjacent structure. Compare hypoechoic.
adj. (in ultrasound imaging) describing a darker area, which is usually caused by any structure (e.g. a cyst) that allows the sound waves to pass through and therefore reflects echoes to a lesser degree than the adjacent structure. Compare hyperechoic.... hypoechoic