Fig. 1From: A case of ductal carcinoma in situ (DCIS) with markedly elevated CA15-3 levels requiring 2 years of diagnosisClinical imaging findings at initial examination. a Ultrasound of the breast: a 3.8 × 2.5 × 3.5 cm large non-mass lesion from below the nipple to the 3 o'clock position. b Lymph nodes with cortical thickening in the left axilla (arrowhead). c, d PET-CT: SUVmax 2.1 in the left mammary gland and SUVmax 3.5 in the left axillary lymph node (arrow). PET-CT, positron emission tomography-computed tomographyBack to article page