But I could tell from a few hours of investigation that the career of a breast cancer patient had been pretty well mapped out in advance: you may get to negotiate the choice between lumpectomy and mastectomy, but lumpectomy is commonly followed by weeks of radiation, and in either case if the lymph nodes turn out, upon dissection, to be invaded – or "involved," as it's less threateningly put – you're doomed to months of chemotherapy, an intervention that is on a par with using a sledge hammer to swat mosquitoes.