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US image and associated maps. (a) US image of a hypoechoic lobulated mass (arrows) with internal echoes and septations located at the 2 o’clock position in the right breast of a 40-year-old woman. Grading from the two readers was 4b and 4c. (b) tHb map shows a diffused mass of maximum 52.5 μmol/L. (c) oxyHb map of maximum 39.8 μmol/L and (d) deoxyHb map of 12.8 μmol/L. Core biopsy revealed hylinized fibroadenoma with mild-to-moderate epithelial hyperplasia without atypia.
