Abstract
We present two cases of unilateral multicentric cancer of the breast, showing special type and different pathological carcinoma. The first case involved a 75-year-old woman, who was seen at the hospital for a left breast tumor. There were two palpable tumors comprising a tumor 2.5cm in diameter in the A area and another tumor 1.5cm in diameter in the DC area of the left breast. Mammography visualized a spiculated tumor and branching calcifications, while ultrasonography visualized both lesions as hypoechoic tumors, and CT visualized both lesions as enhanced tumors. Breast-conserving surgery was performed for each tumor (Bp+Ax). Pathologically, the tumor in the A area was invasive lobular carcinoma and the tumor in the DC area was papillotubular carcinoma. The second case involved a 61-year-old woman, who was seen at the hospital for a right breast tumor. A tumor with the diameter of 1.5cm was palpated in the A area of the right breast. Mammography visualized an indistinct tumor, ultrasonography a hypoechoic tumor with slightly accentuating posterior echo, and CT revealed another enhanced tumor in the D area, apart from the tumor in the A area of the right breast. Breast-conserving surgery was performed for each tumor (Bp+Ax). Pathologically, the tumor in the A area was mucinous carcinoma and the tumor in the D area was papillotubular carcinoma.
