Malignant adenomyoepithelioma of the breast: Two case reports and review of the literature

Figure 1 Imaging examinations in Case 1. A: Mammary ultrasound revealed a 2.6 cm × 0.9 cm low echoic mass in her left breast; B: Left breast magnetic resonance imaging showed no invasion of the adjacent skin and nipple.

Figure 2 Imaging examinations in Case 2. A: Ultrasound revealed a mixed echogenic mass of the left breast with ambiguous borders, measuring 4.0 cm × 2.6 cm × 4.5 cm; B: Mammography showed thickened peripheral skin and suspensory ligament; C: Magnetic resonance imaging showed a cystic lesion with irregular necrosis in the tumor.

Figure 3 Pathological examinations. A: Case 1; B: Case 2. Hematoxylin-eosin staining and immunohistochemical analysis for P63 staining (200 ×).