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(a) Ultrasound shows the structure of the mammary gland disorder, skin thickening subcutaneous tissue space edema, and low echo area, suggesting breast cancer (Grade III invasive ductal carcinoma). (b) Ultrasound shows a 5.0 × 2.9 × 4.8 cm hypoechoic, undersmooth, irregular, and lobulated mass, which indicates lobular neoplasms (Grade II invasive ductal carcinoma).
