Women carrying benign breast lesions will be further divided and analyzed according to the Fitzgibbon's risk categories for invasive cancer risk (4). The Fitzgibbon's categories are:
1. No increased risk group including adenosis (other than sclerotic), duct ectasia fibroadenoma without complex features,
2. slightly increased risk group (1.5-20 times) which includes fibroadenoma with complex features, moderate or florid hyperplasia without atypia, sclerosing adenosis,
3. moderately increased risk group (4.0-5.0 times) includes atypical ductal and lobular hyperplasia and
4. markedly increased risk group (8.0-10.0 times) which includes ductal and lobular carcinomas In Situ Following the blood collection, detailed relevant clinical information of the patient will be registered in a case record form.
The data will include: age, country of birth, last menstrual period, lactation, number of children, age at first full-term pregnancy, age at onset of menopause, family history, medication, mammography findings, FNA results, tumor size, histological findings, biopsies, disease staging, and other relevant clinical information.