Does not mean it: A hypoechoic mass is a lump which appears relatively darker on an ultrasound scan, because it reflects fewer ultrasound waves. The significance of this finding varies depending on the context.One example of a hypoechoic mass, seen in the thyroid gland, is a benign tumor called a follicular adenoma. Confusingly, follicular adenomas may also appear hyperechoic, so does not mean one way or another
Answered 4/13/2019
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