case_images: PMC10982323_01
case_images: (A) Chest CT image: the red circle indicates a mass of the left accessory milk, which is not clearly connected to the breast tissue. (B) Mammary ultrasound: A glandular echo with a thickness of approximately 0.8 cm can be seen in the left axilla, and a hypoechoic nodule measuring approximately 3.0 cm x 2.1 cm can be seen on the inside. The boundary is clear and irregular in shape, with early lobulation, and the internal echo is uneven and separated.
case_images: fsurg-11-1252131-g001.jpg
case_images: PMC10982323_01_fsurg-11-1252131-g001.jpg
case_images: F1
case_images: The left axillary accessory mammary gland appeared as hypoechoic nodules, graded BI-RADS 4b, while the left axillary lymph node structure was abnormal (Figure 1).
case_images: (A) Preoperative tumor location markers. (B) Postoperative specimen: No definite continuous breast tissue was found in the adipose tissue inside the mass.
case_images: fsurg-11-1252131-g002.jpg
case_images: PMC10982323_01_fsurg-11-1252131-g002.jpg
case_images: F2
case_images: Preoperative tumor location markers and postoperative specimens are shown in Figure 2.
case_images: (A) Pathology of the left internal upper quadrant mass (invasive ductal carcinoma): non-specific invasive carcinoma in situ (approximately 0.5 cm x 1.5 cm, grade II). (B) Pathology of the left axillary mass: non-specific invasive breast cancer with medullary features (approximately 2.8 cm x 2.5 cm, grade III).
case_images: fsurg-11-1252131-g003.jpg
case_images: PMC10982323_01_fsurg-11-1252131-g003.jpg
case_images: F3
case_images: III (Figure 3). Immunohistochemical staining revealed the following results: ER and PR expression were negative, p53 was wild-type, and Ki-67 was positive in 90% of cases. II (Figure 3). Immunohistochemical staining results revealed positive expression of ER (3+, 90%), PR (3+, 80%), p53 (wild-type), and Ki-67 (+, 5%).