Adenomyoepithelioma of the breast with malignant transformation and repeated local recurrence: A case report

Figure 1 Imaging and pathology findings at the time of the initial surgery. A: The mammogram showed an oval, smooth, well-defined, isodense mass in the upper right breast (white arrow); B: Ultrasonography showed a well-defined mass with cystic changes, measuring up to 16 mm, at the 2 o’clock position of the right breast; C: The tumor was a cystic lesion, and the cystic wall had nodules or irregular thickening (× 65 magnification); D: Round or spindle-shaped myoepithelium proliferating in and around the gland ducts was observed. High mitotic counts were prominent in the myoepithelial component (× 100 magnification).