Bilateral primary breast cancer. According to the length of the time interval between the two sides of the disease were divided into two gro
Bilateral primary breast cancer. According to the length of the time interval between the two sides of the disease were divided into two groups (interval of 6 months).
At present, most of the Warren revised standards are adopted in our country: (1) each tumor is malignant: (2) each tumor has its own pathological characteristics; (3) to exclude the possibility of metastasis.
If both sides of the same pathological type, with one of the following conditions should also be considered for bilateral primary breast cancer: (1) on both sides of carcinoma in situ or early cancer without lymph node metastasis; (2) the second side nuclear differentiation than the first side, adjacent tissue had obvious ductal epithelial hyperplasia of the table (3;) was located in the upper outer quadrant rather than near the midline.