BILATERAL BREAST CANCER——REPORT OF 10 CASES
Shi Zhan, et al(Department of Surgery, Second Affiliated Hospital)
This paper reports 170 cases of breast cancer treated by surgery in our hospital during the Period 1891 to 1985. Of these patients, 10(5.9%) (1 male and 9 females, mean age 46.1) had bilateral breast cancer, 8(4.7%) primary bilateral breast cancer and 2 (1.2%) secondary bilateral breast cancer. The shortest interval between the primary cancer focus and the secondary focus was 10 months and the longest 41 months, the mean interval was 27.5 months. Primary bilateral breast cancer was mostly seen in premenopause women: If pirmary cancer occured one after another, second- day cancer focus mostly occured within the first 2-3 years after primary cancer focus was treated. It is emphasized that contralateral breast should be examined carefully before operation and the patient should be followed up within 2-3 year operated if she has unilateral brcast cancer. It is warned that an active treatment is given up when an isolated mass disocvered in the contralateral breast is misdiagnosed as metastatic cancer.