A 50-year-old woman has a lumpectomy following mammographic discovery of a carcinoma of the breast. Which of the following is a well-known characteristic or association of breast cancer?: (A) Low-fat diet, (B) Positive family history, (C) Excessive thinness, (D) Multiparity
Answer is B. A history of breast cancer in first-degree female relatives and a diet high in animal fats are impoant associations of breast cancer. Associations related to excess estrogen stimulation include:- High-fat diet Obesity Early menarche Nulliparity. Additional associations are delayed first pregnancy and exogenous estrogen therapy.