"hypoechoic halo sign (also known as target or bull's eye sign) in liver metastases: used in hepatobiliary imaging, is a concerning feature for malignant lesion if the lesion is a hyperechoic liver lesion 1,2"
"hypoechoic halo sign (also known as target or bull's eye sign) in liver metastases: used in hepatobiliary imaging, is a concerning feature for malignant lesion if the lesion is a hyperechoic liver lesion 1,2"
"halo sign in thyroid nodules: thin, uniform, hypo- hyperechoic rim around a nodule is a sign of benignity; with a thick, irregular, halo is more associated with thyroid cancer 7,8"