THE USEFULNESS OF IMAGING DIAGNOSIS FOR SYNCHRONOUS AND PRIMARY BILATERAL BREAST CANCER -REPORT OF THREE CASES-

Abstract

Three cases of synchronous and primary bilateral breast cancer in which the diagnostic imaging was very useful are described.
Case 1: A 63-year-old female. A 46×36 mm tumor was palpated in the right region C, but no palpable tumor in the left breast. Ultrasonography showed a hypoechoic lesion of about 5 mm in diameter on the left breast. Intraoperative frozen section diagnosis revealed bilateral breast cancers. Case 2: A 76-year-old female. A nodule 20 mm in diameter in the right region C and a 20×20 mm tumor in the left region AE were palpated. Mammography and ultrasonography revealed an irregular shaped tumor shadow of about 9 mm on the right breast. We suspected as cancer as well as on the left breast. Case 3. A 53-year-old female. Bilateral breast nodules, a 80×80 mm nodule centering in the right region C to cover the entire breast and a 24×22 mm nodule in the left region C, were palpated. Mammography and ultrasonography revealed irregular shaped tumor shadows. Histological examination showed intraductal components in bilateral breasts of all three cases and they were diagnosed as primary bilateral breast cancer.
Mammography and ultrasonography of which resolution has been improved are useful to detect breast cancer in an early stage. It is necessary to explore the contralateral breast closely with possible synchronous bilateral breast cancer in mind.