Risk factors for breast cancer still remains mystery with many possibilities....... But imaging for cancer at early stage is better for prognosis Fibrocystic is a non-neoplastic proliferation Most common neoplastic breast tumors are fibroadenoma ( benign) , ductal carcinoma & lobular carcinoma ( both are malignant) All of them are adenocarcinoma because they arise from epithelial cells of acini/ glands from lobule of breast